diff --git a/.rubocop.yml b/.rubocop.yml
index 71273ce609..2fda0b0311 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -691,7 +691,7 @@ Style/ZeroLengthPredicate:
 # branches, and conditions.
 Metrics/AbcSize:
   Enabled: true
-  Max: 70
+  Max: 60
 
 # Avoid excessive block nesting.
 Metrics/BlockNesting:
diff --git a/CHANGELOG b/CHANGELOG
index a23c8a54af..382318a203 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,36 +1,63 @@
 Please view this file on the master branch, on stable branches it's out of date.
 
 v 8.7.0 (unreleased)
+  - All service classes (those residing in app/services) are now instrumented (Yorick Peterse)
+  - Enable gzip for assets, makes the page size significantly smaller. !3544 / !3632 (Connor Shea)
+  - Load award emoji images separately unless opening the full picker. Saves several hundred KBs of data for most pages. (Connor Shea)
   - All images in discussions and wikis now link to their source files !3464 (Connor Shea).
+  - Return status code 303 after a branch DELETE operation to avoid project deletion (Stan Hu)
   - Improved Markdown rendering performance !3389 (Yorick Peterse)
   - Don't attempt to look up an avatar in repo if repo directory does not exist (Stan Hu)
+  - Expose project badges in project settings
   - Preserve time notes/comments have been updated at when moving issue
   - Make HTTP(s) label consistent on clone bar (Stan Hu)
   - Expose label description in API (Mariusz Jachimowicz)
   - Allow back dating on issues when created through the API
   - Fix Error 500 after renaming a project path (Stan Hu)
   - Fix avatar stretching by providing a cropping feature
+  - API: Expose `subscribed` for issues and merge requests (Robert Schilling)
+  - Allow SAML to handle external users based on user's information !3530
   - Add endpoints to archive or unarchive a project !3372
   - Add links to CI setup documentation from project settings and builds pages
   - Handle nil descriptions in Slack issue messages (Stan Hu)
+  - API: Expose open_issues_count, closed_issues_count, open_merge_requests_count for labels (Robert Schilling)
   - Add default scope to projects to exclude projects pending deletion
   - Ensure empty recipients are rejected in BuildsEmailService
+  - API: Ability to filter milestones by state `active` and `closed` (Robert Schilling)
+  - API: Fix milestone filtering by `iid` (Robert Schilling)
+  - API: Delete notes of issues, snippets, and merge requests (Robert Schilling)
   - Implement 'Groups View' as an option for dashboard preferences !3379 (Elias W.)
+  - Better errors handling when creating milestones inside groups
+  - Hide `Create a group` help block when creating a new project in a group
   - Implement 'TODOs View' as an option for dashboard preferences !3379 (Elias W.)
   - Gracefully handle notes on deleted commits in merge requests (Stan Hu)
   - Fix creation of merge requests for orphaned branches (Stan Hu)
+  - API: Ability to retrieve a single tag (Robert Schilling)
   - Fall back to `In-Reply-To` and `References` headers when sub-addressing is not available (David Padilla)
   - Remove "Congratulations!" tweet button on newly-created project. (Connor Shea)
-  - Improved UX of the navigation sidebar
+  - Fix admin/projects when using visibility levels on search (PotHix)
   - Build status notifications
-  - API: Ability to retrieve a specific tag (Robert Schilling)
   - API: Expose user location (Robert Schilling)
+  - ClosingIssueExtractor regex now also works with colons. e.g. "Fixes: #1234" !3591
+  - Update number of Todos in the sidebar when it's marked as "Done". !3600
+  - API: Expose 'updated_at' for issue, snippet, and merge request notes (Robert Schilling)
+  - API: User can leave a project through the API when not master or owner. !3613
 
-v 8.6.5 (unreleased)
-  - Check permissions when user attempts to import members from another project
+v 8.6.6
+  - Fix error on language detection when repository has no HEAD (e.g., master branch). !3654 (Jeroen Bobbeldijk)
+
+v 8.6.5
+  - Fix importing from GitHub Enterprise. !3529
+  - Perform the language detection after updating merge requests in `GitPushService`, leading to faster visual feedback for the end-user. !3533
+  - Check permissions when user attempts to import members from another project. !3535
+  - Only update repository language if it is not set to improve performance. !3556
+  - Return status code 303 after a branch DELETE operation to avoid project deletion (Stan Hu). !3583
+  - Unblock user when active_directory is disabled and it can be found !3550
+  - Fix a 2FA authentication spoofing vulnerability.
 
 v 8.6.4
   - Don't attempt to fetch any tags from a forked repo (Stan Hu)
+  - Redesign the Labels page
 
 v 8.6.3
   - Mentions on confidential issues doesn't create todos for non-members. !3374
@@ -147,6 +174,9 @@ v 8.6.0
   - Trigger a todo for mentions on commits page
   - Let project owners and admins soft delete issues and merge requests
 
+v 8.5.10
+  - Fix a 2FA authentication spoofing vulnerability.
+
 v 8.5.9
   - Don't attempt to fetch any tags from a forked repo (Stan Hu).
 
@@ -291,6 +321,9 @@ v 8.5.0
   - Show label row when filtering issues or merge requests by label (Nuttanart Pornprasitsakul)
   - Add Todos
 
+v 8.4.8
+  - Fix a 2FA authentication spoofing vulnerability.
+
 v 8.4.7
   - Don't attempt to fetch any tags from a forked repo (Stan Hu).
 
@@ -410,6 +443,9 @@ v 8.4.0
   - Add IP check against DNSBLs at account sign-up
   - Added cache:key to .gitlab-ci.yml allowing to fine tune the caching
 
+v 8.3.7
+  - Fix a 2FA authentication spoofing vulnerability.
+
 v 8.3.6
   - Don't attempt to fetch any tags from a forked repo (Stan Hu).
 
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 511336f384..1f26a5d7ea 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -448,7 +448,7 @@ merge request:
     - multi-line method chaining style **Option B**: dot `.` on previous line
     - string literal quoting style **Option A**: single quoted by default
 1.  [Rails](https://github.com/bbatsov/rails-style-guide)
-1.  [Testing](https://github.com/thoughtbot/guides/tree/master/style/testing)
+1.  [Testing](doc/development/testing.md)
 1.  [CoffeeScript](https://github.com/thoughtbot/guides/tree/master/style/coffeescript)
 1.  [SCSS styleguide][scss-styleguide]
 1.  [Shell commands](doc/development/shell_commands.md) created by GitLab
diff --git a/GITLAB_SHELL_VERSION b/GITLAB_SHELL_VERSION
index 24ba9a38de..37c2961c24 100644
--- a/GITLAB_SHELL_VERSION
+++ b/GITLAB_SHELL_VERSION
@@ -1 +1 @@
-2.7.0
+2.7.2
diff --git a/Gemfile b/Gemfile
index 6327227282..258b5612cd 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,6 +1,6 @@
 source "https://rubygems.org"
 
-gem 'rails', '4.2.5.2'
+gem 'rails', '4.2.6'
 gem 'rails-deprecated_sanitizer', '~> 1.0.3'
 
 # Responders respond_to and respond_with
@@ -8,7 +8,7 @@ gem 'responders', '~> 2.0'
 
 # Specify a sprockets version due to increased performance
 # See https://gitlab.com/gitlab-org/gitlab-ce/issues/6069
-gem 'sprockets', '~> 3.3.5'
+gem 'sprockets', '~> 3.6.0'
 
 # Default values for AR models
 gem "default_value_for", "~> 3.0.0"
@@ -149,6 +149,10 @@ gem 'version_sorter', '~> 2.0.0'
 # Cache
 gem "redis-rails", '~> 4.0.0'
 
+# Redis
+gem 'redis', '~> 3.2'
+gem 'connection_pool', '~> 2.0'
+
 # Campfire integration
 gem 'tinder', '~> 1.10.0'
 
@@ -229,14 +233,13 @@ group :metrics do
   gem 'allocations', '~> 1.0', require: false, platform: :mri
   gem 'method_source', '~> 0.8', require: false
   gem 'influxdb', '~> 0.2', require: false
-  gem 'connection_pool', '~> 2.0', require: false
 end
 
 group :development do
   gem "foreman"
   gem 'brakeman', '~> 3.2.0', require: false
 
-  gem "annotate", "~> 2.6.0"
+  gem "annotate", "~> 2.7.0"
   gem "letter_opener", '~> 1.1.2'
   gem 'quiet_assets', '~> 1.0.2'
   gem 'rerun', '~> 0.11.0'
@@ -290,7 +293,7 @@ group :development, :test do
   gem 'rubocop', '~> 0.38.0', require: false
   gem 'scss_lint', '~> 0.47.0', require: false
   gem 'coveralls',  '~> 0.8.2', require: false
-  gem 'simplecov', '~> 0.10.0', require: false
+  gem 'simplecov', '~> 0.11.0', require: false
   gem 'flog', require: false
   gem 'flay', require: false
   gem 'bundler-audit', require: false
diff --git a/Gemfile.lock b/Gemfile.lock
index 0981c3195a..9da44a4658 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -4,41 +4,41 @@ GEM
     CFPropertyList (2.3.2)
     RedCloth (4.2.9)
     ace-rails-ap (2.0.1)
-    actionmailer (4.2.5.2)
-      actionpack (= 4.2.5.2)
-      actionview (= 4.2.5.2)
-      activejob (= 4.2.5.2)
+    actionmailer (4.2.6)
+      actionpack (= 4.2.6)
+      actionview (= 4.2.6)
+      activejob (= 4.2.6)
       mail (~> 2.5, >= 2.5.4)
       rails-dom-testing (~> 1.0, >= 1.0.5)
-    actionpack (4.2.5.2)
-      actionview (= 4.2.5.2)
-      activesupport (= 4.2.5.2)
+    actionpack (4.2.6)
+      actionview (= 4.2.6)
+      activesupport (= 4.2.6)
       rack (~> 1.6)
       rack-test (~> 0.6.2)
       rails-dom-testing (~> 1.0, >= 1.0.5)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    actionview (4.2.5.2)
-      activesupport (= 4.2.5.2)
+    actionview (4.2.6)
+      activesupport (= 4.2.6)
       builder (~> 3.1)
       erubis (~> 2.7.0)
       rails-dom-testing (~> 1.0, >= 1.0.5)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    activejob (4.2.5.2)
-      activesupport (= 4.2.5.2)
+    activejob (4.2.6)
+      activesupport (= 4.2.6)
       globalid (>= 0.3.0)
-    activemodel (4.2.5.2)
-      activesupport (= 4.2.5.2)
+    activemodel (4.2.6)
+      activesupport (= 4.2.6)
       builder (~> 3.1)
-    activerecord (4.2.5.2)
-      activemodel (= 4.2.5.2)
-      activesupport (= 4.2.5.2)
+    activerecord (4.2.6)
+      activemodel (= 4.2.6)
+      activesupport (= 4.2.6)
       arel (~> 6.0)
     activerecord-deprecated_finders (1.0.4)
     activerecord-session_store (0.1.2)
       actionpack (>= 4.0.0, < 5)
       activerecord (>= 4.0.0, < 5)
       railties (>= 4.0.0, < 5)
-    activesupport (4.2.5.2)
+    activesupport (4.2.6)
       i18n (~> 0.7)
       json (~> 1.7, >= 1.7.7)
       minitest (~> 5.1)
@@ -51,8 +51,8 @@ GEM
       activerecord (>= 3.0)
     akismet (2.0.0)
     allocations (1.0.4)
-    annotate (2.6.10)
-      activerecord (>= 3.2, <= 4.3)
+    annotate (2.7.0)
+      activerecord (>= 3.2, < 6.0)
       rake (~> 10.4)
     arel (6.0.3)
     asana (0.4.0)
@@ -136,17 +136,16 @@ GEM
     colorize (0.7.7)
     concurrent-ruby (1.0.0)
     connection_pool (2.2.0)
-    coveralls (0.8.9)
+    coveralls (0.8.13)
       json (~> 1.8)
-      rest-client (>= 1.6.8, < 2)
-      simplecov (~> 0.10.0)
+      simplecov (~> 0.11.0)
       term-ansicolor (~> 1.3)
       thor (~> 0.19.1)
       tins (~> 1.6.0)
     crack (0.4.3)
       safe_yaml (~> 1.0.0)
     creole (0.5.0)
-    css_parser (1.3.7)
+    css_parser (1.4.1)
       addressable
     d3_rails (3.5.11)
       railties (>= 3.1.0)
@@ -176,8 +175,6 @@ GEM
     diff-lcs (1.2.5)
     diffy (3.0.7)
     docile (1.1.5)
-    domain_name (0.5.25)
-      unf (>= 0.0.5, < 1.0.0)
     doorkeeper (2.2.2)
       railties (>= 3.2)
     dropzonejs-rails (0.7.2)
@@ -421,8 +418,6 @@ GEM
       nokogiri (~> 1.6.0)
       ruby_parser (~> 3.5)
     htmlentities (4.3.4)
-    http-cookie (1.0.2)
-      domain_name (~> 0.5)
     http_parser.rb (0.5.3)
     httparty (0.13.7)
       json (~> 1.8)
@@ -464,8 +459,8 @@ GEM
       nokogiri (>= 1.5.9)
     macaddr (1.7.1)
       systemu (~> 2.6.2)
-    mail (2.6.3)
-      mime-types (>= 1.16, < 3)
+    mail (2.6.4)
+      mime-types (>= 1.16, < 4)
     mail_room (0.6.1)
     method_source (0.8.2)
     mime-types (1.25.1)
@@ -480,7 +475,6 @@ GEM
     nested_form (0.3.2)
     net-ldap (0.12.1)
     net-ssh (3.0.1)
-    netrc (0.11.0)
     newrelic_rpm (3.14.1.311)
     nokogiri (1.6.7.2)
       mini_portile2 (~> 2.0.0.rc2)
@@ -565,8 +559,8 @@ GEM
     premailer (1.8.6)
       css_parser (>= 1.3.6)
       htmlentities (>= 4.0.0)
-    premailer-rails (1.9.0)
-      actionmailer (>= 3, < 5)
+    premailer-rails (1.9.2)
+      actionmailer (>= 3, < 6)
       premailer (~> 1.7, >= 1.7.9)
     pry (0.10.3)
       coderay (~> 1.1.0)
@@ -595,16 +589,16 @@ GEM
       rack
     rack-test (0.6.3)
       rack (>= 1.0)
-    rails (4.2.5.2)
-      actionmailer (= 4.2.5.2)
-      actionpack (= 4.2.5.2)
-      actionview (= 4.2.5.2)
-      activejob (= 4.2.5.2)
-      activemodel (= 4.2.5.2)
-      activerecord (= 4.2.5.2)
-      activesupport (= 4.2.5.2)
+    rails (4.2.6)
+      actionmailer (= 4.2.6)
+      actionpack (= 4.2.6)
+      actionview (= 4.2.6)
+      activejob (= 4.2.6)
+      activemodel (= 4.2.6)
+      activerecord (= 4.2.6)
+      activesupport (= 4.2.6)
       bundler (>= 1.3.0, < 2.0)
-      railties (= 4.2.5.2)
+      railties (= 4.2.6)
       sprockets-rails
     rails-deprecated_sanitizer (1.0.3)
       activesupport (>= 4.2.0.alpha)
@@ -614,9 +608,9 @@ GEM
       rails-deprecated_sanitizer (>= 1.0.1)
     rails-html-sanitizer (1.0.3)
       loofah (~> 2.0)
-    railties (4.2.5.2)
-      actionpack (= 4.2.5.2)
-      activesupport (= 4.2.5.2)
+    railties (4.2.6)
+      actionpack (= 4.2.6)
+      activesupport (= 4.2.6)
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
     rainbow (2.1.0)
@@ -657,10 +651,6 @@ GEM
       listen (~> 3.0)
     responders (2.1.1)
       railties (>= 4.2.0, < 5.1)
-    rest-client (1.8.0)
-      http-cookie (>= 1.0.2, < 2.0)
-      mime-types (>= 1.16, < 3.0)
-      netrc (~> 0.7)
     rinku (1.7.3)
     rotp (2.1.1)
     rouge (1.10.1)
@@ -754,7 +744,7 @@ GEM
       rufus-scheduler (>= 2.0.24)
       sidekiq (>= 4.0.0)
     simple_oauth (0.1.9)
-    simplecov (0.10.0)
+    simplecov (0.11.2)
       docile (~> 1.1.0)
       json (~> 1.8)
       simplecov-html (~> 0.10.0)
@@ -786,12 +776,13 @@ GEM
       spring (>= 0.9.1)
     spring-commands-teaspoon (0.0.2)
       spring (>= 0.9.1)
-    sprockets (3.3.5)
+    sprockets (3.6.0)
+      concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
-    sprockets-rails (2.3.3)
-      actionpack (>= 3.0)
-      activesupport (>= 3.0)
-      sprockets (>= 2.8, < 4.0)
+    sprockets-rails (3.0.4)
+      actionpack (>= 4.0)
+      activesupport (>= 4.0)
+      sprockets (>= 3.0.0)
     state_machines (0.4.0)
     state_machines-activemodel (0.3.0)
       activemodel (~> 4.1)
@@ -845,7 +836,7 @@ GEM
     underscore-rails (1.8.3)
     unf (0.1.4)
       unf_ext
-    unf_ext (0.0.7.1)
+    unf_ext (0.0.7.2)
     unicode-display_width (1.0.2)
     unicorn (4.9.0)
       kgio (~> 2.6)
@@ -897,7 +888,7 @@ DEPENDENCIES
   after_commit_queue
   akismet (~> 2.0)
   allocations (~> 1.0)
-  annotate (~> 2.6.0)
+  annotate (~> 2.7.0)
   asana (~> 0.4.0)
   asciidoctor (~> 1.5.2)
   attr_encrypted (~> 1.3.4)
@@ -1002,13 +993,14 @@ DEPENDENCIES
   rack-attack (~> 4.3.1)
   rack-cors (~> 0.4.0)
   rack-oauth2 (~> 1.2.1)
-  rails (= 4.2.5.2)
+  rails (= 4.2.6)
   rails-deprecated_sanitizer (~> 1.0.3)
   raphael-rails (~> 2.1.2)
   rblineprof
   rdoc (~> 3.6)
   recaptcha
   redcarpet (~> 3.3.3)
+  redis (~> 3.2)
   redis-namespace
   redis-rails (~> 4.0.0)
   request_store (~> 1.3.0)
@@ -1032,7 +1024,7 @@ DEPENDENCIES
   shoulda-matchers (~> 2.8.0)
   sidekiq (~> 4.0)
   sidekiq-cron (~> 0.4.0)
-  simplecov (~> 0.10.0)
+  simplecov (~> 0.11.0)
   sinatra (~> 1.4.4)
   six (~> 0.2.0)
   slack-notifier (~> 1.2.0)
@@ -1042,7 +1034,7 @@ DEPENDENCIES
   spring-commands-rspec (~> 1.0.4)
   spring-commands-spinach (~> 1.0.0)
   spring-commands-teaspoon (~> 0.0.2)
-  sprockets (~> 3.3.5)
+  sprockets (~> 3.6.0)
   state_machines-activerecord (~> 0.3.0)
   task_list (~> 1.0.2)
   teaspoon (~> 1.1.0)
diff --git a/app/assets/javascripts/awards_handler.coffee b/app/assets/javascripts/awards_handler.coffee
index 6a670d5e88..af4462ece3 100644
--- a/app/assets/javascripts/awards_handler.coffee
+++ b/app/assets/javascripts/awards_handler.coffee
@@ -22,8 +22,19 @@ class @AwardsHandler
     emoji = $(this)
       .find(".icon")
       .data "emoji"
+
+    if emoji is "thumbsup" and awards_handler.didUserClickEmoji $(this), "thumbsdown"
+      awards_handler.addAward "thumbsdown"
+
+    else if emoji is "thumbsdown" and awards_handler.didUserClickEmoji $(this), "thumbsup"
+      awards_handler.addAward "thumbsup"
+
     awards_handler.addAward emoji
 
+  didUserClickEmoji: (that, emoji) ->
+    if $(that).siblings("button:has([data-emoji=#{emoji}])").attr("data-original-title")
+      $(that).siblings("button:has([data-emoji=#{emoji}])").attr("data-original-title").indexOf('me') > -1
+
   showEmojiMenu: ->
     if $(".emoji-menu").length
       if $(".emoji-menu").is ".is-visible"
@@ -105,7 +116,7 @@ class @AwardsHandler
     if origTitle
       authors = origTitle.split(', ')
     authors.push("me")
-    award_block.attr("title", authors.join(", "))
+    award_block.attr("data-original-title", authors.join(", "))
     @resetTooltip(award_block)
 
   resetTooltip: (award) ->
@@ -122,7 +133,7 @@ class @AwardsHandler
 
     nodes = []
     nodes.push(
-      "<button class='btn award-control js-emoji-btn has-tooltip active' title='me'>",
+      "<button class='btn award-control js-emoji-btn has-tooltip active' data-original-title='me'>",
       "<div class='icon emoji-icon #{emojiCssClass}' data-emoji='#{emoji}'></div>",
       "<span class='award-control-text js-counter'>1</span>",
       "</button>"
diff --git a/app/assets/javascripts/behaviors/requires_input.js.coffee b/app/assets/javascripts/behaviors/requires_input.js.coffee
index 79d750d184..0faa570ce1 100644
--- a/app/assets/javascripts/behaviors/requires_input.js.coffee
+++ b/app/assets/javascripts/behaviors/requires_input.js.coffee
@@ -35,4 +35,18 @@ $.fn.requiresInput = ->
   $form.on 'change input', fieldSelector, requireInput
 
 $ ->
-  $('form.js-requires-input').requiresInput()
+  $form = $('form.js-requires-input')
+  $form.requiresInput()
+
+  # Hide or Show the help block when creating a new project
+  # based on the option selected
+  hideOrShowHelpBlock = (form) ->
+    selected = $('.js-select-namespace option:selected')
+    if selected.length and selected.data('options-parent') is 'groups'
+      return form.find('.help-block').hide()
+    else if selected.length
+      form.find('.help-block').show()
+
+  hideOrShowHelpBlock($form)
+
+  $('.select2.js-select-namespace').change -> hideOrShowHelpBlock($form)
diff --git a/app/assets/javascripts/compare.js.coffee b/app/assets/javascripts/compare.js.coffee
new file mode 100644
index 0000000000..f20992ead3
--- /dev/null
+++ b/app/assets/javascripts/compare.js.coffee
@@ -0,0 +1,67 @@
+class @Compare
+  constructor: (@opts) ->
+    @source_loading = $ ".js-source-loading"
+    @target_loading = $ ".js-target-loading"
+
+    $('.js-compare-dropdown').each (i, dropdown) =>
+      $dropdown = $(dropdown)
+
+      $dropdown.glDropdown(
+        selectable: true
+        fieldName: $dropdown.data 'field-name'
+        filterable: true
+        id: (obj, $el) ->
+          $el.data 'id'
+        toggleLabel: (obj, $el) ->
+          $el.text().trim()
+        clicked: (e, el) =>
+          if $dropdown.is '.js-target-branch'
+            @getTargetHtml()
+          else if $dropdown.is '.js-source-branch'
+            @getSourceHtml()
+          else if $dropdown.is '.js-target-project'
+            @getTargetProject()
+      )
+
+    @initialState()
+
+  initialState: ->
+    @getSourceHtml()
+    @getTargetHtml()
+
+  getTargetProject: ->
+    $.ajax(
+      url: @opts.targetProjectUrl
+      data:
+        target_project_id:  $("input[name='merge_request[target_project_id]']").val()
+      beforeSend: ->
+        $('.mr_target_commit').empty()
+      success: (html) ->
+        $('.js-target-branch-dropdown .dropdown-content').html html
+    )
+
+  getSourceHtml: ->
+    @sendAjax(@opts.sourceBranchUrl, @source_loading, '.mr_source_commit',
+      ref: $("input[name='merge_request[source_branch]']").val()
+    )
+
+  getTargetHtml: ->
+    @sendAjax(@opts.targetBranchUrl, @target_loading, '.mr_target_commit',
+      target_project_id: $("input[name='merge_request[target_project_id]']").val()
+      ref: $("input[name='merge_request[target_branch]']").val()
+    )
+
+  sendAjax: (url, loading, target, data) ->
+    $target = $(target)
+
+    $.ajax(
+      url: url
+      data: data
+      beforeSend: ->
+        loading.show()
+        $target.empty()
+      success: (html) ->
+        loading.hide()
+        $target.html html
+        $('.js-timeago', $target).timeago()
+    )
diff --git a/app/assets/javascripts/gl_dropdown.js.coffee b/app/assets/javascripts/gl_dropdown.js.coffee
index 2a4811b876..ee1d0fad28 100644
--- a/app/assets/javascripts/gl_dropdown.js.coffee
+++ b/app/assets/javascripts/gl_dropdown.js.coffee
@@ -57,14 +57,30 @@ class GitLabDropdownFilter
 
   filter: (search_text) ->
     data = @options.data()
-    results = data
 
-    if search_text isnt ""
-      results = fuzzaldrinPlus.filter(data, search_text,
-        key: @options.keys
-      )
+    if data?
+      results = data
 
-    @options.callback results
+      if search_text isnt ''
+        results = fuzzaldrinPlus.filter(data, search_text,
+          key: @options.keys
+        )
+
+      @options.callback results
+    else
+      elements = @options.elements()
+
+      if search_text
+        elements.each ->
+          $el = $(@)
+          matches = fuzzaldrinPlus.match($el.text().trim(), search_text)
+
+          if matches.length
+            $el.show()
+          else
+            $el.hide()
+      else
+        elements.show()
 
 class GitLabDropdownRemote
   constructor: (@dataEndpoint, @options) ->
@@ -123,7 +139,7 @@ class GitLabDropdown
     if _.isString(@filterInput)
       @filterInput = @getElement(@filterInput)
 
-    search_fields = if @options.search then @options.search.fields else [];
+    searchFields = if @options.search then @options.search.fields else [];
 
     if @options.data
       # If data is an array
@@ -147,7 +163,14 @@ class GitLabDropdown
         filterInputBlur: @filterInputBlur
         remote: @options.filterRemote
         query: @options.data
-        keys: @options.search.fields
+        keys: searchFields
+        elements: =>
+          selector = '.dropdown-content li:not(.divider)'
+
+          if @dropdown.find('.dropdown-toggle-page').length
+            selector = ".dropdown-page-one #{selector}"
+
+          return $(selector)
         data: =>
           return @fullData
         callback: (data) =>
@@ -177,10 +200,11 @@ class GitLabDropdown
         selector = ".dropdown-page-one .dropdown-content a"
 
       @dropdown.on "click", selector, (e) ->
-        selected = self.rowClicked $(@)
+        $el = $(@)
+        selected = self.rowClicked $el
 
         if self.options.clicked
-          self.options.clicked(selected)
+          self.options.clicked(selected, $el, e)
 
   # Finds an element inside wrapper element
   getElement: (selector) ->
@@ -360,6 +384,8 @@ class GitLabDropdown
       # Toggle the dropdown label
       if @options.toggleLabel
         $(@el).find(".dropdown-toggle-text").text @options.toggleLabel
+      else
+        selectedObject
     else
       if !value?
         field.remove()
@@ -373,9 +399,9 @@ class GitLabDropdown
 
       # Toggle the dropdown label
       if @options.toggleLabel
-        $(@el).find(".dropdown-toggle-text").text @options.toggleLabel(selectedObject)
+        $(@el).find(".dropdown-toggle-text").text @options.toggleLabel(selectedObject, el)
       if value?
-        if !field.length
+        if !field.length and fieldName
           # Create hidden input for form
           input = "<input type='hidden' name='#{fieldName}' value='#{value}' />"
           if @options.inputId?
@@ -394,7 +420,7 @@ class GitLabDropdown
       selector = ".dropdown-page-one #{selector}"
 
     # simulate a click on the first link
-    $(selector).trigger "click"
+    $(selector, @dropdown).trigger "click"
 
   addArrowKeyEvent: ->
     ARROW_KEY_CODES = [38, 40]
diff --git a/app/assets/javascripts/issues.js.coffee b/app/assets/javascripts/issues.js.coffee
index b1479bfb44..0d9f2094c2 100644
--- a/app/assets/javascripts/issues.js.coffee
+++ b/app/assets/javascripts/issues.js.coffee
@@ -26,6 +26,20 @@
 
     $(".selected_issue").bind "change", Issues.checkChanged
 
+  # Update state filters if present in page
+  updateStateFilters: ->
+    stateFilters =  $('.issues-state-filters')
+    newParams = {}
+    paramKeys = ['author_id', 'label_name', 'milestone_title', 'assignee_id', 'issue_search']
+
+    for paramKey in paramKeys
+      newParams[paramKey] = gl.utils.getUrlParameter(paramKey) or ''
+
+    if stateFilters.length
+      stateFilters.find('a').each ->
+        initialUrl = $(this).attr 'href'
+        $(this).attr 'href', gl.utils.mergeUrlParams(newParams, initialUrl)
+
   # Make sure we trigger ajax request only after user stop typing
   initSearch: ->
     @timer = null
@@ -54,6 +68,7 @@
         # Change url so if user reload a page - search results are saved
         history.replaceState {page: issuesUrl}, document.title, issuesUrl
         Issues.reload()
+        Issues.updateStateFilters()
       dataType: "json"
 
   checkChanged: ->
diff --git a/app/assets/javascripts/lib/notify.js.coffee b/app/assets/javascripts/lib/notify.js.coffee
index 3f9ca39912..9e28353ac3 100644
--- a/app/assets/javascripts/lib/notify.js.coffee
+++ b/app/assets/javascripts/lib/notify.js.coffee
@@ -2,6 +2,11 @@
   notificationGranted = (message, opts, onclick) ->
     notification = new Notification(message, opts)
 
+    # Hide the notification after X amount of seconds
+    setTimeout ->
+      notification.close()
+    , 8000
+
     if onclick
       notification.onclick = onclick
 
diff --git a/app/assets/javascripts/lib/url_utility.js.coffee b/app/assets/javascripts/lib/url_utility.js.coffee
new file mode 100644
index 0000000000..abd556e0b4
--- /dev/null
+++ b/app/assets/javascripts/lib/url_utility.js.coffee
@@ -0,0 +1,31 @@
+((w) ->
+
+  w.gl ?= {}
+  w.gl.utils ?= {}
+
+  w.gl.utils.getUrlParameter = (sParam) ->
+    sPageURL = decodeURIComponent(window.location.search.substring(1))
+    sURLVariables = sPageURL.split('&')
+    sParameterName = undefined
+    i = 0
+    while i < sURLVariables.length
+      sParameterName = sURLVariables[i].split('=')
+      if sParameterName[0] is sParam
+        return if sParameterName[1] is undefined then true else sParameterName[1]
+      i++
+
+  # #
+  #  @param {Object} params - url keys and value to merge
+  #  @param {String} url
+  # #
+  w.gl.utils.mergeUrlParams = (params, url) ->
+    newUrl = decodeURIComponent(url)
+    for paramName, paramValue of params
+      pattern = new RegExp "\\b(#{paramName}=).*?(&|$)"
+      if url.search(pattern) >= 0
+        newUrl = newUrl.replace pattern, "$1#{paramValue}$2"
+      else
+        newUrl = "#{newUrl}#{(if newUrl.indexOf('?') > 0 then '&' else '?')}#{paramName}=#{paramValue}"
+    newUrl
+
+) window
diff --git a/app/assets/javascripts/merge_request_tabs.js.coffee b/app/assets/javascripts/merge_request_tabs.js.coffee
index 839e6ec2c0..9946249adb 100644
--- a/app/assets/javascripts/merge_request_tabs.js.coffee
+++ b/app/assets/javascripts/merge_request_tabs.js.coffee
@@ -73,7 +73,8 @@ class @MergeRequestTabs
       @expandView()
     else if action == 'diffs'
       @loadDiff($target.attr('href'))
-      @shrinkView()
+      if bp? and bp.getBreakpointSize() isnt 'lg'
+        @shrinkView()
     else if action == 'builds'
       @loadBuilds($target.attr('href'))
       @expandView()
diff --git a/app/assets/javascripts/merge_request_widget.js.coffee b/app/assets/javascripts/merge_request_widget.js.coffee
index 7102a0673e..065626beeb 100644
--- a/app/assets/javascripts/merge_request_widget.js.coffee
+++ b/app/assets/javascripts/merge_request_widget.js.coffee
@@ -12,9 +12,20 @@ class @MergeRequestWidget
     @readyForCICheck = true
     clearInterval @fetchBuildStatusInterval
 
+    @clearEventListeners()
+    @addEventListeners()
     @pollCIStatus()
     notifyPermissions()
 
+  clearEventListeners: ->
+    $(document).off 'page:change.merge_request'
+
+  addEventListeners: ->
+    $(document).on 'page:change.merge_request', =>
+      if $('body').data('page') isnt 'projects:merge_requests:show'
+        clearInterval @fetchBuildStatusInterval
+        @clearEventListeners()
+
   mergeInProgress: (deleteSourceBranch = false)->
     $.ajax
       type: 'GET'
@@ -36,7 +47,7 @@ class @MergeRequestWidget
       $('.mr-state-widget').replaceWith(data)
 
   ciLabelForStatus: (status) ->
-    if status == 'success'
+    if status is 'success'
       'passed'
     else
       status
@@ -48,7 +59,7 @@ class @MergeRequestWidget
       @getCIStatus(true)
 
       @readyForCICheck = false
-    ), 5000
+    ), 10000
 
   getCIStatus: (showNotification) ->
     _this = @
@@ -61,18 +72,32 @@ class @MergeRequestWidget
         @firstCICheck = false
         @opts.ci_status = data.status
 
-      if data.status isnt @opts.ci_status
+      if @opts.ci_status is ''
+        @opts.ci_status = data.status
+        return
+
+      if data.status isnt @opts.ci_status and data.status?
         @showCIStatus data.status
         if data.coverage
           @showCICoverage data.coverage
 
         if showNotification
-          message = @opts.ci_message.replace('{{status}}', @ciLabelForStatus(data.status))
+          status = @ciLabelForStatus(data.status)
+
+          if status is "preparing"
+            title = @opts.ci_title.preparing
+            status = status.charAt(0).toUpperCase() + status.slice(1);
+            message = @opts.ci_message.preparing.replace('{{status}}', status)
+          else
+            title = @opts.ci_title.normal
+            message = @opts.ci_message.normal.replace('{{status}}', status)
+
+          title = title.replace('{{status}}', status)
           message = message.replace('{{sha}}', data.sha)
           message = message.replace('{{title}}', data.title)
 
           notify(
-            "Build #{@ciLabelForStatus(data.status)}",
+            title,
             message,
             @opts.gitlab_icon,
             ->
@@ -92,6 +117,8 @@ class @MergeRequestWidget
           @setMergeButtonClass('btn-danger')
         when "running", "pending"
           @setMergeButtonClass('btn-warning')
+        when "success"
+          @setMergeButtonClass('btn-create')
     else
       $('.ci_widget.ci-error').show()
       @setMergeButtonClass('btn-danger')
@@ -101,4 +128,6 @@ class @MergeRequestWidget
     $('.ci_widget:visible .ci-coverage').text(text)
 
   setMergeButtonClass: (css_class) ->
-    $('.accept_merge_request').removeClass("btn-create").addClass(css_class)
+    $('.accept_merge_request')
+      .removeClass('btn-danger btn-warning btn-create')
+      .addClass(css_class)
diff --git a/app/assets/javascripts/milestone_select.js.coffee b/app/assets/javascripts/milestone_select.js.coffee
index f73127f49f..6bd4e885a0 100644
--- a/app/assets/javascripts/milestone_select.js.coffee
+++ b/app/assets/javascripts/milestone_select.js.coffee
@@ -85,15 +85,21 @@ class @MilestoneSelect
           # display:block overrides the hide-collapse rule
           $value.removeAttr('style')
         clicked: (selected) ->
+          page = $('body').data 'page'
+          isIssueIndex = page is 'projects:issues:index'
+          isMRIndex = page is page is 'projects:merge_requests:index'
+
           if $dropdown.hasClass 'js-filter-bulk-update'
             return
 
-          if $dropdown.hasClass('js-filter-submit')
+          if $dropdown.hasClass('js-filter-submit') and (isIssueIndex or isMRIndex)
             if selected.name?
               selectedMilestone = selected.name
             else
               selectedMilestone = ''
             Issues.filterResults $dropdown.closest('form')
+          else if $dropdown.hasClass('js-filter-submit')
+            $dropdown.closest('form').submit()
           else
             selected = $selectbox
               .find('input[type="hidden"]')
diff --git a/app/assets/javascripts/search_autocomplete.js.coffee b/app/assets/javascripts/search_autocomplete.js.coffee
index 030655491b..6a7b4ad1db 100644
--- a/app/assets/javascripts/search_autocomplete.js.coffee
+++ b/app/assets/javascripts/search_autocomplete.js.coffee
@@ -62,6 +62,8 @@ class @SearchAutocomplete
         search:
           fields: ['text']
         data: @getData.bind(@)
+        selectable: true
+        clicked: @onClick.bind(@)
 
   getData: (term, callback) ->
     _this = @
@@ -102,6 +104,8 @@ class @SearchAutocomplete
             lastCategory = suggestion.category
 
           data.push
+            id: "#{suggestion.category.toLowerCase()}-#{suggestion.id}"
+            category: suggestion.category
             text: suggestion.label
             url: suggestion.url
 
@@ -133,12 +137,19 @@ class @SearchAutocomplete
     }
 
   bindEvents: ->
+    $(document).on 'click', @onDocumentClick
     @searchInput.on 'keydown', @onSearchInputKeyDown
     @searchInput.on 'keyup', @onSearchInputKeyUp
     @searchInput.on 'click', @onSearchInputClick
     @searchInput.on 'focus', @onSearchInputFocus
-    @searchInput.on 'blur', @onSearchInputBlur
-    @clearInput.on 'click', @onRemoveLocationClick
+    @clearInput.on 'click', @onClearInputClick
+
+  onDocumentClick: (e) =>
+    # If clicking outside the search box
+    # And search input is not focused
+    # And we are not clicking inside a suggestion
+    if not $.contains(@dropdown[0], e.target) and @isFocused and not $(e.target).parents('ul').length
+      @onSearchInputBlur()
 
   enableAutocomplete: ->
     # No need to enable anything if user is not logged in
@@ -181,6 +192,8 @@ class @SearchAutocomplete
           # We should display the menu only when input is not empty
           @enableAutocomplete()
 
+    @wrap.toggleClass 'has-value', !!e.target.value
+
     # Avoid falsy value to be returned
     return
 
@@ -189,27 +202,20 @@ class @SearchAutocomplete
     e.stopImmediatePropagation()
 
   onSearchInputFocus: =>
+    @isFocused = true
     @wrap.addClass('search-active')
 
-  onRemoveLocationClick: (e) =>
+  onClearInputClick: (e) =>
     e.preventDefault()
-    @removeLocationBadge()
     @searchInput.val('').focus()
-    @skipBlurEvent = true
 
   onSearchInputBlur: (e) =>
-    @skipBlurEvent = false
+    @isFocused = false
+    @wrap.removeClass('search-active')
 
-    # We should wait to make sure we are not clearing the input instead
-    setTimeout( =>
-      return if @skipBlurEvent
-
-      @wrap.removeClass('search-active')
-
-      # If input is blank then restore state
-      if @searchInput.val() is ''
-        @restoreOriginalState()
-    , 150)
+    # If input is blank then restore state
+    if @searchInput.val() is ''
+      @restoreOriginalState()
 
   addLocationBadge: (item) ->
     category = if item.category? then "#{item.category}: " else ''
@@ -268,3 +274,23 @@ class @SearchAutocomplete
               <li><a class='dropdown-menu-empty-link is-focused'>Loading...</a></li>
             </ul>"
     @dropdownContent.html(html)
+
+  onClick: (item, $el, e) ->
+    if location.pathname.indexOf(item.url) isnt -1
+      e.preventDefault()
+      if not @badgePresent
+        if item.category is 'Projects'
+          @projectInputEl.val(item.id)
+          @addLocationBadge(
+            value: 'This project'
+          )
+
+        if item.category is 'Groups'
+          @groupInputEl.val(item.id)
+          @addLocationBadge(
+            value: 'This group'
+          )
+
+      $el.removeClass('is-active')
+      @disableAutocomplete()
+      @searchInput.val('').focus()
diff --git a/app/assets/javascripts/sidebar.js.coffee b/app/assets/javascripts/sidebar.js.coffee
index e177851124..860d4f438d 100644
--- a/app/assets/javascripts/sidebar.js.coffee
+++ b/app/assets/javascripts/sidebar.js.coffee
@@ -4,6 +4,7 @@ expanded = 'page-sidebar-expanded'
 toggleSidebar = ->
   $('.page-with-sidebar').toggleClass("#{collapsed} #{expanded}")
   $('header').toggleClass("header-collapsed header-expanded")
+  $('.toggle-nav-collapse i').toggleClass("fa-angle-right fa-angle-left")
   $.cookie("collapsed_nav", $('.page-with-sidebar').hasClass(collapsed), { path: '/' })
 
   setTimeout ( ->
diff --git a/app/assets/javascripts/subscription.js.coffee b/app/assets/javascripts/subscription.js.coffee
index 084f0e0dc6..e4b7a3172e 100644
--- a/app/assets/javascripts/subscription.js.coffee
+++ b/app/assets/javascripts/subscription.js.coffee
@@ -10,10 +10,10 @@ class @Subscription
     btn = $(event.currentTarget)
     action = btn.find('span').text()
     current_status = @subscription_status.attr('data-status')
-    btn.prop('disabled', true)
+    btn.addClass('disabled')
 
     $.post @url, =>
-      btn.prop('disabled', false)
+      btn.removeClass('disabled')
       status = if current_status == 'subscribed' then 'unsubscribed' else 'subscribed'
       @subscription_status.attr('data-status', status)
       action = if status == 'subscribed' then 'Unsubscribe' else 'Subscribe'
diff --git a/app/assets/javascripts/todos.js.coffee b/app/assets/javascripts/todos.js.coffee
index ec2df6c5b7..886da72e26 100644
--- a/app/assets/javascripts/todos.js.coffee
+++ b/app/assets/javascripts/todos.js.coffee
@@ -57,5 +57,10 @@ class @Todos
     $('.todos-pending .badge, .todos-pending-count').text data.count
     $('.todos-done .badge').text data.done_count
 
-  goToTodoUrl: ->
-    Turbolinks.visit($(this).data('url'))
+  goToTodoUrl: (e)->
+    todoLink = $(this).data('url')
+    if e.metaKey
+      e.preventDefault()
+      window.open(todoLink,'_blank')
+    else
+      Turbolinks.visit(todoLink)
diff --git a/app/assets/stylesheets/framework/buttons.scss b/app/assets/stylesheets/framework/buttons.scss
index 657c5f033c..e8c0172680 100644
--- a/app/assets/stylesheets/framework/buttons.scss
+++ b/app/assets/stylesheets/framework/buttons.scss
@@ -7,6 +7,7 @@
   &:focus,
   &:active {
     outline: none;
+    background-color: $btn-active-gray;
     @include box-shadow($gl-btn-active-background);
   }
 }
@@ -27,7 +28,8 @@
     color: $color;
   }
 
-  &:active {
+  &:active,
+  &.active {
     @include box-shadow ($gl-btn-active-background);
 
     background-color: $dark;
@@ -61,7 +63,7 @@
 }
 
 @mixin btn-white {
-  @include btn-color($white-light, $border-white-light, $white-normal, $border-white-normal, $white-dark, $border-white-dark, #313236);
+  @include btn-color($white-light, $border-color, $white-normal, $border-white-normal, $white-dark, $border-white-dark, $btn-white-active);
 }
 
 .btn {
@@ -218,3 +220,26 @@
     margin-right: 5px;
   }
 }
+
+.btn-text-field {
+  width: 100%;
+  text-align: left;
+  padding: 6px 16px;
+  border-color: $border-color;
+  color: $btn-placeholder-gray;
+  background-color: $background-color;
+
+  &:hover,
+  &:active,
+  &:focus {
+    cursor: text;
+    box-shadow: none;
+    border-color: $border-color;
+    color: $btn-placeholder-gray;
+    background-color: $background-color;
+  }
+}
+
+.btn-file-option {
+  background: linear-gradient(180deg, $white-light 25%, $gray-light 100%);
+}
diff --git a/app/assets/stylesheets/framework/dropdowns.scss b/app/assets/stylesheets/framework/dropdowns.scss
index 82dc1acbd0..ba6c7930cd 100644
--- a/app/assets/stylesheets/framework/dropdowns.scss
+++ b/app/assets/stylesheets/framework/dropdowns.scss
@@ -248,7 +248,7 @@
 
 .dropdown-title {
   position: relative;
-  padding: 0 0 15px;
+  padding: 0 25px 15px;
   margin: 0 10px 10px;
   font-weight: 600;
   line-height: 1;
@@ -275,7 +275,7 @@
 }
 
 .dropdown-menu-close {
-  right: 7px;
+  right: 5px;
   width: 20px;
   height: 20px;
   top: -1px;
diff --git a/app/assets/stylesheets/framework/files.scss b/app/assets/stylesheets/framework/files.scss
index a26ace5cc1..789df42fb6 100644
--- a/app/assets/stylesheets/framework/files.scss
+++ b/app/assets/stylesheets/framework/files.scss
@@ -15,11 +15,13 @@
 
   .file-title {
     position: relative;
-    background: $background-color;
+    background-color: $background-color;
     border-bottom: 1px solid $border-color;
     margin: 0;
     text-align: left;
     padding: 10px $gl-padding;
+    word-wrap: break-word;
+    border-radius: 3px 3px 0 0;
 
     .file-actions {
       float: right;
@@ -48,7 +50,7 @@
       }
     }
 
-    a {
+    a:not(.btn) {
       color: $gl-dark-link-color;
     }
 
diff --git a/app/assets/stylesheets/framework/gitlab-theme.scss b/app/assets/stylesheets/framework/gitlab-theme.scss
index fa9038ebac..c83cf88159 100644
--- a/app/assets/stylesheets/framework/gitlab-theme.scss
+++ b/app/assets/stylesheets/framework/gitlab-theme.scss
@@ -33,15 +33,10 @@
       background: $color;
     }
 
-    .complex-sidebar .nav-primary {
-      border-right: 1px solid lighten($color, 3%);
-    }
-
     .sidebar-wrapper {
       background: $color-darker;
 
       .sidebar-user {
-        border-top: 1px solid lighten($color, 3%);
         background: $color-darker;
         color: $color-light;
 
@@ -67,6 +62,7 @@
 
         .count {
           color: $color-light;
+          background: $color-dark;
         }
       }
 
diff --git a/app/assets/stylesheets/framework/header.scss b/app/assets/stylesheets/framework/header.scss
index 724980b220..b3397d1601 100644
--- a/app/assets/stylesheets/framework/header.scss
+++ b/app/assets/stylesheets/framework/header.scss
@@ -123,11 +123,11 @@ header {
 }
 
 @mixin collapsed-header {
-  margin-left: 40px;
+  margin-left: $sidebar_collapsed_width;
 }
 
 .header-collapsed {
-  margin-left: 40px;
+  margin-left: $sidebar_collapsed_width;
 
   @media (min-width: $screen-md-min) {
     @include collapsed-header;
diff --git a/app/assets/stylesheets/framework/markdown_area.scss b/app/assets/stylesheets/framework/markdown_area.scss
index ea8e1c902c..c8f86d60e3 100644
--- a/app/assets/stylesheets/framework/markdown_area.scss
+++ b/app/assets/stylesheets/framework/markdown_area.scss
@@ -84,6 +84,7 @@
 .md-preview-holder {
   min-height: 167px;
   padding: 10px 0;
+  overflow-x: auto;
 }
 
 .markdown-area {
diff --git a/app/assets/stylesheets/framework/sidebar.scss b/app/assets/stylesheets/framework/sidebar.scss
index 1d49249dd8..18189e985c 100644
--- a/app/assets/stylesheets/framework/sidebar.scss
+++ b/app/assets/stylesheets/framework/sidebar.scss
@@ -144,7 +144,7 @@
     }
 
     a {
-      padding: 7px 12px;
+      padding: 7px 15px;
       font-size: $gl-font-size;
       line-height: 24px;
       color: $gray;
@@ -169,12 +169,10 @@
       }
 
       .count {
-        &:before {
-          content: '(';
-        }
-        &:after {
-          content: ')';
-        }
+        float: right;
+        background: #eee;
+        padding: 0 8px;
+        @include border-radius(6px);
       }
 
       &.back-link i {
@@ -193,27 +191,6 @@
   }
 }
 
-.expand-nav a {
-  color: $gl-icon-color;
-  width: 60px;
-  position: fixed;
-  top: 0;
-  left: 0;
-  font-size: 20px;
-  background: #fff;
-  height: 59px;
-  text-align: center;
-  line-height: 59px;
-  border-bottom: 1px solid #eee;
-  transition-duration: .3s;
-  outline: none;
-  z-index: 100;
-
-  &:hover {
-    text-decoration: none;
-  }
-}
-
 .collapse-nav a {
   width: $sidebar_width;
   position: fixed;
@@ -233,12 +210,55 @@
 }
 
 .page-sidebar-collapsed {
+  padding-left: $sidebar_collapsed_width;
+
   .sidebar-wrapper {
-    display: none;
+    width: $sidebar_collapsed_width;
+
+    .header-logo {
+      width: $sidebar_collapsed_width;
+
+      a {
+        padding-left: ($sidebar_collapsed_width - 36) / 2;
+
+        .gitlab-text-container {
+          display: none;
+        }
+      }
+    }
+
+    .nav-sidebar {
+      width: $sidebar_collapsed_width;
+
+      li {
+        width: auto;
+
+        a {
+          span {
+            display: none;
+          }
+        }
+      }
+    }
+
+    .collapse-nav a {
+      width: $sidebar_collapsed_width;
+    }
+
+    .sidebar-user {
+      padding-left: ($sidebar_collapsed_width - 36) / 2;
+      width: $sidebar_collapsed_width;
+
+      .username {
+        display: none;
+      }
+    }
   }
 }
 
 .page-sidebar-expanded {
+  padding-left: $sidebar_collapsed_width;
+
   @media (min-width: $screen-md-min) {
     padding-left: $sidebar_width;
   }
@@ -289,48 +309,3 @@
     padding-right: $sidebar_collapsed_width;
   }
 }
-
-.complex-sidebar {
-  display: inline-block;
-
-  .nav-primary {
-    width: 61px;
-    float: left;
-    height: 100vh;
-
-    .nav-sidebar {
-      width: 60px;
-
-      li a {
-        width: 60px;
-
-        span {
-          display: none;
-        }
-      }
-    }
-  }
-
-  .nav-secondary {
-    $nav-secondary-width: 168px;
-
-    float: left;
-    width: $nav-secondary-width;
-
-    .nav-sidebar {
-      width: $nav-secondary-width;
-
-      li {
-        width: $nav-secondary-width;
-
-        a {
-          width: $nav-secondary-width;
-
-          i {
-            display: none;
-          }
-        }
-      }
-    }
-  }
-}
diff --git a/app/assets/stylesheets/framework/timeline.scss b/app/assets/stylesheets/framework/timeline.scss
index aa244fe548..b91f2f6f89 100644
--- a/app/assets/stylesheets/framework/timeline.scss
+++ b/app/assets/stylesheets/framework/timeline.scss
@@ -14,10 +14,6 @@
       background: $row-hover;
     }
 
-    &:last-child {
-      border-bottom: none;
-    }
-
     .avatar {
       margin-right: 15px;
     }
diff --git a/app/assets/stylesheets/framework/variables.scss b/app/assets/stylesheets/framework/variables.scss
index c2defd3188..1ebbd9b0e5 100644
--- a/app/assets/stylesheets/framework/variables.scss
+++ b/app/assets/stylesheets/framework/variables.scss
@@ -10,10 +10,10 @@ $gutter_inner_width: 258px;
 /*
  * UI elements
  */
-$border-color:       #efeff1;
+$border-color:       #e5e5e5;
 $focus-border-color: #3aabf0;
 $table-border-color: #eef0f2;
-$background-color:   #faf9f9;
+$background-color:   #fafafa;
 
 /*
  * Text
@@ -81,7 +81,7 @@ $provider-btn-not-active-color: #4688f1;
 
 $white-light: #fff;
 $white-normal: #ededed;
-$white-dark: #ededed;
+$white-dark: #ececec;
 
 $gray-light: #faf9f9;
 $gray-normal: #f5f5f5;
@@ -104,9 +104,11 @@ $orange-light: rgba(252, 109, 38, 0.80);
 $orange-normal: #e75e40;
 $orange-dark: #ce5237;
 
-$red-light: #f06559;
-$red-normal: #e52c5a;
-$red-dark: #d22852;
+$red-light: #e52c5a;
+$red-normal: #d22852;
+$red-dark: darken($red-normal, 5%);
+
+$black-transparent: rgba(0, 0, 0, 0.3);
 
 $border-white-light: #f1f2f4;
 $border-white-normal: #d6dae2;
@@ -128,9 +130,9 @@ $border-orange-light: #fc6d26;
 $border-orange-normal: #ce5237;
 $border-orange-dark: #c14e35;
 
-$border-red-light: #f24f41;
-$border-red-normal: #d22852;
-$border-red-dark: #ca264f;
+$border-red-light: #d22852;
+$border-red-normal: #ca264f;
+$border-red-dark: darken($border-red-normal, 5%);
 
 $help-well-bg: #fafafa;
 $help-well-border: #e5e5e5;
@@ -150,15 +152,22 @@ $gl-success: $green-normal;
 $gl-info: $blue-normal;
 $gl-warning: $orange-normal;
 $gl-danger: $red-normal;
-$gl-btn-active-background: rgba(0, 0, 0, 0.12);
-$gl-btn-active-gradient: inset 0 0 4px $gl-btn-active-background;
+$gl-btn-active-background: rgba(0, 0, 0, 0.16);
+$gl-btn-active-gradient: inset 0 2px 3px $gl-btn-active-background;
 
 /*
  * Commit Diff Colors
  */
 $added: #63c363;
 $deleted: #f77;
-
+$line-added: #ecfdf0;
+$line-added-dark: #c7f0d2;
+$line-removed: #fbe9eb;
+$line-removed-dark: #fac5cd;
+$line-number-old: #f9d7dc;
+$line-number-new: #ddfbe6;
+$match-line: #fafafa;
+$table-border-gray: #f0f0f0;
 /*
  * Fonts
  */
@@ -191,6 +200,13 @@ $dropdown-toggle-hover-border-color: darken($dropdown-toggle-border-color, 15%);
 $dropdown-toggle-icon-color: #c4c4c4;
 $dropdown-toggle-hover-icon-color: $dropdown-toggle-hover-border-color;
 
+/*
+* Buttons
+*/
+$btn-active-gray: #ececec;
+$btn-placeholder-gray: #c7c7c7;
+$btn-white-active: #848484;
+
 /*
  *  Award emoji
  */
@@ -201,14 +217,14 @@ $award-emoji-new-btn-icon-color: #dcdcdc;
 /*
  * Search Box
  */
-$search-input-border-color: $dropdown-input-focus-border;
+$search-input-border-color: rgba(#4688f1, .8);
 $search-input-focus-shadow-color: $dropdown-input-focus-shadow;
-$search-input-width: $dropdown-width;
+$search-input-width: 244px;
 $location-badge-color: #aaa;
 $location-badge-bg: $gray-normal;
+$location-badge-active-bg: #4f91f8;
 $location-icon-color: #e7e9ed;
-$location-active-color: $gl-text-color;
-$location-active-bg: $search-input-border-color;
+$location-icon-active-color: #807e7e;
 
 /*
  *  Notes
diff --git a/app/assets/stylesheets/highlight/solarized_light.scss b/app/assets/stylesheets/highlight/solarized_light.scss
index b90c95c62d..c482a1258f 100644
--- a/app/assets/stylesheets/highlight/solarized_light.scss
+++ b/app/assets/stylesheets/highlight/solarized_light.scss
@@ -6,7 +6,7 @@
   }
 
   .diff-line-num, .diff-line-num a {
-    color: rgba(0, 0, 0, 0.3);
+    color: $black-transparent;
   }
 
   // Code itself
@@ -30,7 +30,7 @@
     }
 
     .line_content.match {
-      color: rgba(0, 0, 0, 0.3);
+      color: $black-transparent;
       background: rgba(255, 255, 255, 0.4);
     }
   }
diff --git a/app/assets/stylesheets/highlight/white.scss b/app/assets/stylesheets/highlight/white.scss
index 8c1b0cd84e..28331f5975 100644
--- a/app/assets/stylesheets/highlight/white.scss
+++ b/app/assets/stylesheets/highlight/white.scss
@@ -6,12 +6,12 @@
   }
 
   .diff-line-num, .diff-line-num a {
-    color: rgba(0, 0, 0, 0.3);
+    color: $black-transparent;
   }
 
   // Code itself
   pre.code, .diff-line-num {
-    border-color: $border-color;
+    border-color: $table-border-gray;
   }
 
   &, pre.code, .line_holder .line_content {
@@ -23,36 +23,36 @@
   .line_holder {
     .diff-line-num {
       &.old {
-        background: #fdd;
-        border-color: #f1c0c0;
+        background-color: $line-number-old;
+        border-color: $line-removed-dark;
       }
 
       &.new {
-        background: #dbffdb;
-        border-color: #c1e9c1;
+        background-color: $line-number-new;
+        border-color: $line-added-dark;
       }
     }
 
     .line_content {
       &.old {
-        background: #ffecec;
+        background: $line-removed;
 
         span.idiff {
-          background-color: #f8cbcb;
+          background-color: $line-removed-dark;
         }
       }
 
       &.new {
-        background: #eaffea;
+        background-color: $line-added;
 
         span.idiff {
-          background-color: #a6f3a6;
+          background-color: $line-added-dark;
         }
       }
 
       &.match {
-        color: rgba(0, 0, 0, 0.3);
-        background: #fafafa;
+        color: $black-transparent;
+        background: $match-line;
       }
     }
   }
diff --git a/app/assets/stylesheets/pages/commit.scss b/app/assets/stylesheets/pages/commit.scss
index 082911bd11..358d2f4ab9 100644
--- a/app/assets/stylesheets/pages/commit.scss
+++ b/app/assets/stylesheets/pages/commit.scss
@@ -20,6 +20,8 @@
   margin: 0;
   padding: 0;
   margin-top: 10px;
+  word-break: normal;
+  white-space: pre-wrap;
 }
 
 .commit-info-row {
diff --git a/app/assets/stylesheets/pages/commits.scss b/app/assets/stylesheets/pages/commits.scss
index 8272615768..6453c91d95 100644
--- a/app/assets/stylesheets/pages/commits.scss
+++ b/app/assets/stylesheets/pages/commits.scss
@@ -47,6 +47,7 @@ li.commit {
 
     .commit_short_id {
       min-width: 65px;
+      color: $gl-dark-link-color;
       font-family: $monospace_font;
     }
 
@@ -88,6 +89,10 @@ li.commit {
       padding: 0;
       margin: 0;
     }
+
+    a {
+      color: $gl-dark-link-color;
+    }
   }
 
   .commit-row-info {
diff --git a/app/assets/stylesheets/pages/detail_page.scss b/app/assets/stylesheets/pages/detail_page.scss
index d3eda1a57e..5917f08972 100644
--- a/app/assets/stylesheets/pages/detail_page.scss
+++ b/app/assets/stylesheets/pages/detail_page.scss
@@ -33,8 +33,12 @@
   .description {
     margin-top: 6px;
 
-    p:last-child {
-      margin-bottom: 0;
+    p {
+      overflow-x: auto;
+
+      &:last-child {
+        margin-bottom: 0;
+      }
     }
   }
 }
diff --git a/app/assets/stylesheets/pages/diff.scss b/app/assets/stylesheets/pages/diff.scss
index f1368d74b3..d0855f6691 100644
--- a/app/assets/stylesheets/pages/diff.scss
+++ b/app/assets/stylesheets/pages/diff.scss
@@ -2,6 +2,7 @@
 .diff-file {
   border: 1px solid $border-color;
   margin-bottom: $gl-padding;
+  border-radius: 3px;
 
   .diff-header {
     position: relative;
@@ -10,6 +11,7 @@
     padding: 10px 16px;
     color: #555;
     z-index: 10;
+    border-radius: 3px 3px 0 0;
 
     .diff-title {
       font-family: $monospace_font;
@@ -31,6 +33,7 @@
     overflow-y: hidden;
     background: #fff;
     color: #333;
+    border-radius: 0 0 3px 3px;
 
     .unfold {
       cursor: pointer;
@@ -59,9 +62,14 @@
       border-collapse: separate;
       margin: 0;
       padding: 0;
+
       .line_holder td {
         line-height: $code_line_height;
         font-size: $code_font_size;
+
+        span {
+          white-space: pre;
+        }
       }
     }
 
@@ -104,6 +112,10 @@
         display: table-cell;
       }
     }
+
+    .text-file.diff-wrap-lines table .line_holder td span {
+      white-space: pre-wrap;
+    }
   }
   .image {
     background: #ddd;
@@ -316,6 +328,16 @@
   float: right;
 }
 
+.diffs {
+  .content-block {
+    border-bottom: none;
+  }
+}
+
+.files-changed {
+  border-bottom: none;
+}
+
 // Mobile
 @media (max-width: 480px) {
   .diff-title {
diff --git a/app/assets/stylesheets/pages/help.scss b/app/assets/stylesheets/pages/help.scss
index bd224705f0..604f1700cf 100644
--- a/app/assets/stylesheets/pages/help.scss
+++ b/app/assets/stylesheets/pages/help.scss
@@ -59,6 +59,9 @@
   position: relative;
   overflow-y: auto;
   padding: 15px;
+  .form-actions {
+    margin: -$gl-padding+1;
+  }
 }
 
 body.modal-open {
diff --git a/app/assets/stylesheets/pages/labels.scss b/app/assets/stylesheets/pages/labels.scss
index 4e02ec4e89..3e0a3140be 100644
--- a/app/assets/stylesheets/pages/labels.scss
+++ b/app/assets/stylesheets/pages/labels.scss
@@ -49,6 +49,15 @@
 }
 
 .label-row {
+  .label-name {
+    display: inline-block;
+    width: 200px;
+
+    @media (max-width: $screen-xs-min) {
+      display: block;
+    }
+  }
+
   .label {
     padding: 9px;
     font-size: 14px;
@@ -69,3 +78,52 @@
   background-color: $gl-danger;
   color: $white-light;
 }
+
+.manage-labels-list {
+
+  .prepend-left-10 {
+    display: inline-block;
+    width: 40%;
+    vertical-align: middle;
+
+    @media (max-width: $screen-xs-min) {
+      display: block;
+      width: 100%;
+      margin-left: 0;
+      padding: 10px 0;
+    }
+  }
+
+  .pull-info-right {
+    float: right;
+
+    @media (max-width: $screen-xs-min) {
+      float: none;
+    }
+
+    .action-buttons {
+      border-color: transparent;
+      padding: 6px;
+      color: $gl-text-color;
+
+      &.subscribe-button {
+        padding-left: 0;
+      }
+    }
+
+    i {
+      color: $gl-text-color;
+    }
+
+    .append-right-20 {
+      a {
+        color: $gl-text-color;
+      }
+
+      @media (max-width: $screen-xs-min) {
+        display: block;
+        margin-bottom: 10px;
+      }
+    }
+  }
+}
diff --git a/app/assets/stylesheets/pages/merge_requests.scss b/app/assets/stylesheets/pages/merge_requests.scss
index 1c6a420897..b79335eab9 100644
--- a/app/assets/stylesheets/pages/merge_requests.scss
+++ b/app/assets/stylesheets/pages/merge_requests.scss
@@ -123,6 +123,8 @@
 
 .mr_source_commit,
 .mr_target_commit {
+  margin-bottom: 0;
+
   .commit {
     margin: 0;
     padding: 2px 0;
@@ -174,10 +176,6 @@
   display: none;
 }
 
-.merge-request-form .select2-container {
-  width: 250px !important;
-}
-
 #modal_merge_info .modal-dialog {
   width: 600px;
 
@@ -200,3 +198,76 @@
     overflow-x: scroll;
   }
 }
+
+.panel-new-merge-request {
+  .panel-heading {
+    padding: 5px 10px;
+    font-weight: 600;
+    line-height: 25px;
+  }
+
+  .panel-body {
+    padding: 10px 5px;
+  }
+
+  .panel-footer {
+    padding: 5px 10px;
+  }
+
+  .commit {
+    .commit-row-title {
+      margin-bottom: 4px;
+    }
+
+    .avatar {
+      width: 20px;
+      height: 20px;
+      margin-right: 5px;
+    }
+
+    .commit-row-info {
+      line-height: 20px;
+    }
+  }
+
+  .btn-clipboard {
+    margin-right: 5px;
+    padding: 0;
+    background: transparent;
+  }
+
+  .ci-status-link {
+    margin-right: 5px;
+  }
+}
+
+.merge-request-select {
+  padding-left: 5px;
+  padding-right: 5px;
+  margin-bottom: 10px;
+
+  &:last-child {
+    margin-bottom: 0;
+  }
+
+  @media (min-width: $screen-sm-min) {
+    float: left;
+    width: 50%;
+    margin-bottom: 0;
+  }
+
+  .dropdown-menu-toggle {
+    width: 100%;
+  }
+
+  .dropdown-menu {
+    left: 5px;
+    right: 5px;
+    width: auto;
+  }
+}
+
+.issuable-form-select-holder {
+  display: inline-block;
+  width: 250px;
+}
diff --git a/app/assets/stylesheets/pages/note_form.scss b/app/assets/stylesheets/pages/note_form.scss
index a909776b43..4d4d508396 100644
--- a/app/assets/stylesheets/pages/note_form.scss
+++ b/app/assets/stylesheets/pages/note_form.scss
@@ -1,10 +1,10 @@
 /**
  * Note Form
  */
-.reply-btn {
-  @extend .btn-primary;
-  margin: 10px $gl-padding;
+.comment-btn {
+  @extend .btn-create;
 }
+
 .diff-file .diff-content {
   tr.line_holder:hover > td .line_note_link {
     opacity: 1.0;
@@ -113,13 +113,12 @@
 .discussion-body,
 .diff-file {
   .notes .note {
-    border-color: #ddd;
     padding: 10px 15px;
   }
 
   .discussion-reply-holder {
-    background: $background-color;
-    border-top: 1px solid $border-color;
+    background-color: $white-light;
+    padding: 10px 16px;
   }
 }
 
diff --git a/app/assets/stylesheets/pages/notes.scss b/app/assets/stylesheets/pages/notes.scss
index 614ca48b90..7295fe5112 100644
--- a/app/assets/stylesheets/pages/notes.scss
+++ b/app/assets/stylesheets/pages/notes.scss
@@ -58,6 +58,7 @@ ul.notes {
   .note {
     display: block;
     position: relative;
+    border-bottom: 1px solid $table-border-gray;
 
     &.is-editting {
       .note-header,
@@ -82,7 +83,7 @@ ul.notes {
         // On diffs code should wrap nicely and not overflow
         pre {
           code {
-            white-space: pre-wrap;
+            white-space: pre;
           }
         }
 
@@ -117,9 +118,6 @@ ul.notes {
       padding-bottom: 3px;
     }
 
-    &:last-child {
-      border-bottom: 1px solid $border-color;
-    }
   }
 }
 
@@ -137,14 +135,14 @@ ul.notes {
   font-family: $regular_font;
 
   td {
-    border: 1px solid #ddd;
+    border: 1px solid $table-border-gray;
     border-left: none;
 
     &.notes_line {
       vertical-align: middle;
       text-align: center;
       padding: 10px 0;
-      background: #fff;
+      background: $background-color;
       color: $text-color;
     }
     &.notes_line2 {
@@ -175,9 +173,6 @@ ul.notes {
     }
   }
 
-  .author_link {
-    font-weight: 600;
-  }
 }
 
 .note-headline-light,
@@ -203,14 +198,26 @@ ul.notes {
   line-height: 24px;
 
   .fa {
+    color: $notes-action-color;
     position: relative;
     top: 1px;
     font-size: 17px;
   }
 
-  .fa-trash-o {
-    top: 0;
-    font-size: 16px;
+  &.js-note-delete {
+    i {
+      &:hover {
+        color: $gl-text-red;
+      }
+    }
+  }
+
+  &.js-note-edit {
+    i {
+      &:hover {
+        color: $gl-link-color;
+      }
+    }
   }
 }
 
diff --git a/app/assets/stylesheets/pages/search.scss b/app/assets/stylesheets/pages/search.scss
index 3c74d25beb..f0f3744c6f 100644
--- a/app/assets/stylesheets/pages/search.scss
+++ b/app/assets/stylesheets/pages/search.scss
@@ -135,25 +135,25 @@
 
     .location-badge {
       @include transition(all .15s);
-      background-color: $location-active-bg;
+      background-color: $location-badge-active-bg;
       color: $white-light;
     }
 
     .search-input-wrap {
       i {
-        color: $location-active-color;
+        color: $location-icon-active-color;
       }
     }
+  }
 
-    &.has-location-badge {
-      .search-icon {
-        display: none;
-      }
+  &.has-value {
+    .search-icon {
+      display: none;
+    }
 
-      .clear-icon {
-        cursor: pointer;
-        display: block;
-      }
+    .clear-icon {
+      cursor: pointer;
+      display: block;
     }
   }
 
diff --git a/app/controllers/admin/projects_controller.rb b/app/controllers/admin/projects_controller.rb
index 4089091d56..c6b3105544 100644
--- a/app/controllers/admin/projects_controller.rb
+++ b/app/controllers/admin/projects_controller.rb
@@ -5,7 +5,7 @@ class Admin::ProjectsController < Admin::ApplicationController
   def index
     @projects = Project.all
     @projects = @projects.in_namespace(params[:namespace_id]) if params[:namespace_id].present?
-    @projects = @projects.where("visibility_level IN (?)", params[:visibility_levels]) if params[:visibility_levels].present?
+    @projects = @projects.where("projects.visibility_level IN (?)", params[:visibility_levels]) if params[:visibility_levels].present?
     @projects = @projects.with_push if params[:with_push].present?
     @projects = @projects.abandoned if params[:abandoned].present?
     @projects = @projects.non_archived unless params[:with_archived].present?
diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index c81cb85dc1..97d53acde9 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -47,6 +47,16 @@ class ApplicationController < ActionController::Base
         email: current_user.email,
         username: current_user.username,
       )
+
+      Raven.tags_context(program: sentry_program_context)
+    end
+  end
+
+  def sentry_program_context
+    if Sidekiq.server?
+      'sidekiq'
+    else
+      'rails'
     end
   end
 
diff --git a/app/controllers/groups/milestones_controller.rb b/app/controllers/groups/milestones_controller.rb
index b23c3022fb..9d5a28e8d4 100644
--- a/app/controllers/groups/milestones_controller.rb
+++ b/app/controllers/groups/milestones_controller.rb
@@ -18,14 +18,14 @@ class Groups::MilestonesController < Groups::ApplicationController
   end
 
   def create
-    project_ids = params[:milestone][:project_ids]
+    project_ids = params[:milestone][:project_ids].reject(&:blank?)
     title = milestone_params[:title]
 
-    @projects.where(id: project_ids).each do |project|
-      Milestones::CreateService.new(project, current_user, milestone_params).execute
+    if create_milestones(project_ids)
+      redirect_to milestone_path(title)
+    else
+      render_new_with_error(project_ids.empty?)
     end
-
-    redirect_to milestone_path(title)
   end
 
   def show
@@ -41,6 +41,27 @@ class Groups::MilestonesController < Groups::ApplicationController
 
   private
 
+  def create_milestones(project_ids)
+    return false unless project_ids.present?
+
+    ActiveRecord::Base.transaction do
+      @projects.where(id: project_ids).each do |project|
+        Milestones::CreateService.new(project, current_user, milestone_params).execute
+      end
+    end
+
+    true
+  rescue ActiveRecord::ActiveRecordError => e
+    flash.now[:alert] = "An error occurred while creating the milestone: #{e.message}"
+    false
+  end
+
+  def render_new_with_error(empty_project_ids)
+    @milestone = Milestone.new(milestone_params)
+    @milestone.errors.add(:project_id, "Please select at least one project.") if empty_project_ids
+    render :new
+  end
+
   def authorize_admin_milestones!
     return render_404 unless can?(current_user, :admin_milestones, group)
   end
diff --git a/app/controllers/omniauth_callbacks_controller.rb b/app/controllers/omniauth_callbacks_controller.rb
index 21135f7d60..df98f56a1c 100644
--- a/app/controllers/omniauth_callbacks_controller.rb
+++ b/app/controllers/omniauth_callbacks_controller.rb
@@ -55,11 +55,13 @@ class OmniauthCallbacksController < Devise::OmniauthCallbacksController
       end
     else
       saml_user = Gitlab::Saml::User.new(oauth)
-      saml_user.save
+      saml_user.save if saml_user.changed?
       @user = saml_user.gl_user
 
       continue_login_process
     end
+  rescue Gitlab::OAuth::SignupDisabledError
+    handle_signup_error
   end
 
   def omniauth_error
@@ -92,16 +94,7 @@ class OmniauthCallbacksController < Devise::OmniauthCallbacksController
       continue_login_process
     end
   rescue Gitlab::OAuth::SignupDisabledError
-    label = Gitlab::OAuth::Provider.label_for(oauth['provider'])
-    message = "Signing in using your #{label} account without a pre-existing GitLab account is not allowed."
-
-    if current_application_settings.signup_enabled?
-      message << " Create a GitLab account first, and then connect it to your #{label} account."
-    end
-
-    flash[:notice] = message
-
-    redirect_to new_user_session_path
+    handle_signup_error
   end
 
   def handle_service_ticket provider, ticket
@@ -122,6 +115,19 @@ class OmniauthCallbacksController < Devise::OmniauthCallbacksController
     end
   end
 
+  def handle_signup_error
+    label = Gitlab::OAuth::Provider.label_for(oauth['provider'])
+    message = "Signing in using your #{label} account without a pre-existing GitLab account is not allowed."
+
+    if current_application_settings.signup_enabled?
+      message << " Create a GitLab account first, and then connect it to your #{label} account."
+    end
+
+    flash[:notice] = message
+
+    redirect_to new_user_session_path
+  end
+
   def oauth
     @oauth ||= request.env['omniauth.auth']
   end
diff --git a/app/controllers/projects/application_controller.rb b/app/controllers/projects/application_controller.rb
index 657ee94cfd..74150ad606 100644
--- a/app/controllers/projects/application_controller.rb
+++ b/app/controllers/projects/application_controller.rb
@@ -68,7 +68,9 @@ class Projects::ApplicationController < ApplicationController
   end
 
   def require_non_empty_project
-    redirect_to namespace_project_path(@project.namespace, @project) if @project.empty_repo?
+    # Be sure to return status code 303 to avoid a double DELETE:
+    # http://api.rubyonrails.org/classes/ActionController/Redirecting.html
+    redirect_to namespace_project_path(@project.namespace, @project), status: 303 if @project.empty_repo?
   end
 
   def require_branch_head
diff --git a/app/controllers/projects/badges_controller.rb b/app/controllers/projects/badges_controller.rb
index 6d4d436098..824aa41db5 100644
--- a/app/controllers/projects/badges_controller.rb
+++ b/app/controllers/projects/badges_controller.rb
@@ -1,5 +1,12 @@
 class Projects::BadgesController < Projects::ApplicationController
-  before_action :no_cache_headers
+  layout 'project_settings'
+  before_action :authorize_admin_project!, only: [:index]
+  before_action :no_cache_headers, except: [:index]
+
+  def index
+    @ref = params[:ref] || @project.default_branch || 'master'
+    @build_badge = Gitlab::Badge::Build.new(@project, @ref)
+  end
 
   def build
     badge = Gitlab::Badge::Build.new(project, params[:ref])
diff --git a/app/controllers/projects/branches_controller.rb b/app/controllers/projects/branches_controller.rb
index c0a5373492..d09e7375b6 100644
--- a/app/controllers/projects/branches_controller.rb
+++ b/app/controllers/projects/branches_controller.rb
@@ -48,7 +48,7 @@ class Projects::BranchesController < Projects::ApplicationController
     respond_to do |format|
       format.html do
         redirect_to namespace_project_branches_path(@project.namespace,
-                                                    @project)
+                                                    @project), status: 303
       end
       format.js { render status: status[:return_code] }
     end
diff --git a/app/controllers/projects/merge_requests_controller.rb b/app/controllers/projects/merge_requests_controller.rb
index 49064f5d50..3e0cfc6aa6 100644
--- a/app/controllers/projects/merge_requests_controller.rb
+++ b/app/controllers/projects/merge_requests_controller.rb
@@ -207,20 +207,20 @@ class Projects::MergeRequestsController < Projects::ApplicationController
     #This is always source
     @source_project = @merge_request.nil? ? @project : @merge_request.source_project
     @commit = @repository.commit(params[:ref]) if params[:ref].present?
+    render layout: false
   end
 
   def branch_to
     @target_project = selected_target_project
     @commit = @target_project.commit(params[:ref]) if params[:ref].present?
+    render layout: false
   end
 
   def update_branches
     @target_project = selected_target_project
     @target_branches = @target_project.repository.branch_names
 
-    respond_to do |format|
-      format.js
-    end
+    render layout: false
   end
 
   def ci_status
@@ -237,6 +237,8 @@ class Projects::MergeRequestsController < Projects::ApplicationController
       end
     end
 
+    status = "preparing" if status.nil?
+
     response = {
       title: merge_request.title,
       sha: merge_request.last_commit_short_sha,
diff --git a/app/controllers/projects/notes_controller.rb b/app/controllers/projects/notes_controller.rb
index 1b9dd56804..707a0d0e5c 100644
--- a/app/controllers/projects/notes_controller.rb
+++ b/app/controllers/projects/notes_controller.rb
@@ -39,8 +39,7 @@ class Projects::NotesController < Projects::ApplicationController
 
   def destroy
     if note.editable?
-      note.destroy
-      note.reset_events_cache
+      Notes::DeleteService.new(project, current_user).execute(note)
     end
 
     respond_to do |format|
diff --git a/app/controllers/projects/refs_controller.rb b/app/controllers/projects/refs_controller.rb
index 00df1c9c96..d79f16e6a5 100644
--- a/app/controllers/projects/refs_controller.rb
+++ b/app/controllers/projects/refs_controller.rb
@@ -24,6 +24,8 @@ class Projects::RefsController < Projects::ApplicationController
             namespace_project_find_file_path(@project.namespace, @project, @id)
           when "graphs_commits"
             commits_namespace_project_graph_path(@project.namespace, @project, @id)
+          when "badges"
+            namespace_project_badges_path(@project.namespace, @project, ref: @id)
           else
             namespace_project_commits_path(@project.namespace, @project, @id)
           end
diff --git a/app/controllers/projects/wikis_controller.rb b/app/controllers/projects/wikis_controller.rb
index 02ceb8f433..9f3a4a6972 100644
--- a/app/controllers/projects/wikis_controller.rb
+++ b/app/controllers/projects/wikis_controller.rb
@@ -88,6 +88,20 @@ class Projects::WikisController < Projects::ApplicationController
     )
   end
 
+  def markdown_preview
+    text = params[:text]
+
+    ext = Gitlab::ReferenceExtractor.new(@project, current_user, current_user)
+    ext.analyze(text)
+
+    render json: {
+      body: view_context.markdown(text, pipeline: :wiki, project_wiki: @project_wiki),
+      references: {
+        users: ext.users.map(&:username)
+      }
+    }
+  end
+
   def git_access
   end
 
diff --git a/app/controllers/sessions_controller.rb b/app/controllers/sessions_controller.rb
index 65677a3dd3..c29f4609e9 100644
--- a/app/controllers/sessions_controller.rb
+++ b/app/controllers/sessions_controller.rb
@@ -5,7 +5,8 @@ class SessionsController < Devise::SessionsController
   skip_before_action :check_2fa_requirement, only: [:destroy]
 
   prepend_before_action :check_initial_setup, only: [:new]
-  prepend_before_action :authenticate_with_two_factor, only: [:create]
+  prepend_before_action :authenticate_with_two_factor,
+    if: :two_factor_enabled?, only: [:create]
   prepend_before_action :store_redirect_path, only: [:new]
 
   before_action :auto_sign_in_with_provider, only: [:new]
@@ -56,10 +57,10 @@ class SessionsController < Devise::SessionsController
   end
 
   def find_user
-    if user_params[:login]
-      User.by_login(user_params[:login])
-    elsif user_params[:otp_attempt] && session[:otp_user_id]
+    if session[:otp_user_id]
       User.find(session[:otp_user_id])
+    elsif user_params[:login]
+      User.by_login(user_params[:login])
     end
   end
 
@@ -83,11 +84,13 @@ class SessionsController < Devise::SessionsController
     end
   end
 
+  def two_factor_enabled?
+    find_user.try(:two_factor_enabled?)
+  end
+
   def authenticate_with_two_factor
     user = self.resource = find_user
 
-    return unless user && user.two_factor_enabled?
-
     if user_params[:otp_attempt].present? && session[:otp_user_id]
       if valid_otp_attempt?(user)
         # Remove any lingering user data from login
diff --git a/app/helpers/blob_helper.rb b/app/helpers/blob_helper.rb
index 820d69c230..9e59a295fc 100644
--- a/app/helpers/blob_helper.rb
+++ b/app/helpers/blob_helper.rb
@@ -27,9 +27,9 @@ module BlobHelper
                                      link_opts)
 
     if !on_top_of_branch?(project, ref)
-      button_tag "Edit", class: "btn btn-default disabled has-tooltip", title: "You can only edit files when you are on a branch", data: { container: 'body' }
+      button_tag "Edit", class: "btn disabled has-tooltip btn-file-option", title: "You can only edit files when you are on a branch", data: { container: 'body' }
     elsif can_edit_blob?(blob, project, ref)
-      link_to "Edit", edit_path, class: 'btn'
+      link_to "Edit", edit_path, class: 'btn btn-file-option'
     elsif can?(current_user, :fork_project, project)
       continue_params = {
         to:     edit_path,
@@ -38,7 +38,7 @@ module BlobHelper
       }
       fork_path = namespace_project_forks_path(project.namespace, project, namespace_key: current_user.namespace.id, continue: continue_params)
 
-      link_to "Edit", fork_path, class: 'btn', method: :post
+      link_to "Edit", fork_path, class: 'btn btn-file-option', method: :post
     end
   end
 
diff --git a/app/helpers/commits_helper.rb b/app/helpers/commits_helper.rb
index bde0799f3d..35ba543cef 100644
--- a/app/helpers/commits_helper.rb
+++ b/app/helpers/commits_helper.rb
@@ -28,7 +28,7 @@ module CommitsHelper
 
   def commit_to_html(commit, project, inline = true)
     template = inline ? "inline_commit" : "commit"
-    escape_javascript(render "projects/commits/#{template}", commit: commit, project: project) unless commit.nil?
+    render "projects/commits/#{template}", commit: commit, project: project unless commit.nil?
   end
 
   # Breadcrumb links for a Project and, if applicable, a tree path
@@ -117,7 +117,7 @@ module CommitsHelper
       end
     end
     link_to(
-      "Browse Files »",
+      "Browse Files",
       namespace_project_tree_path(project.namespace, project, commit),
       class: "pull-right"
     )
@@ -197,7 +197,7 @@ module CommitsHelper
     link_to(
       namespace_project_blob_path(project.namespace, project,
                                   tree_join(commit_sha, diff.new_path)),
-      class: 'btn view-file js-view-file'
+      class: 'btn view-file js-view-file btn-file-option'
     ) do
       raw('View file @') + content_tag(:span, commit_sha[0..6],
                                        class: 'commit-short-id')
diff --git a/app/helpers/form_helper.rb b/app/helpers/form_helper.rb
new file mode 100644
index 0000000000..6a43be2cf3
--- /dev/null
+++ b/app/helpers/form_helper.rb
@@ -0,0 +1,18 @@
+module FormHelper
+  def form_errors(model)
+    return unless model.errors.any?
+
+    pluralized = 'error'.pluralize(model.errors.count)
+    headline   = "The form contains the following #{pluralized}:"
+
+    content_tag(:div, class: 'alert alert-danger', id: 'error_explanation') do
+      content_tag(:h4, headline) <<
+      content_tag(:ul) do
+        model.errors.full_messages.
+          map { |msg| content_tag(:li, msg) }.
+          join.
+          html_safe
+      end
+    end
+  end
+end
diff --git a/app/helpers/gitlab_markdown_helper.rb b/app/helpers/gitlab_markdown_helper.rb
index 2f760af02f..3a45205563 100644
--- a/app/helpers/gitlab_markdown_helper.rb
+++ b/app/helpers/gitlab_markdown_helper.rb
@@ -116,29 +116,6 @@ module GitlabMarkdownHelper
     end
   end
 
-  MARKDOWN_TIPS = [
-    "End a line with two or more spaces for a line-break, or soft-return",
-    "Inline code can be denoted by `surrounding it with backticks`",
-    "Blocks of code can be denoted by three backticks ``` or four leading spaces",
-    "Emoji can be added by :emoji_name:, for example :thumbsup:",
-    "Notify other participants using @user_name",
-    "Notify a specific group using @group_name",
-    "Notify the entire team using @all",
-    "Reference an issue using a hash, for example issue #123",
-    "Reference a merge request using an exclamation point, for example MR !123",
-    "Italicize words or phrases using *asterisks* or _underscores_",
-    "Bold words or phrases using **double asterisks** or __double underscores__",
-    "Strikethrough words or phrases using ~~two tildes~~",
-    "Make a bulleted list using + pluses, - minuses, or * asterisks",
-    "Denote blockquotes using > at the beginning of a line",
-    "Make a horizontal line using three or more hyphens ---, asterisks ***, or underscores ___"
-  ].freeze
-
-  # Returns a random markdown tip for use as a textarea placeholder
-  def random_markdown_tip
-    MARKDOWN_TIPS.sample
-  end
-
   private
 
   # Return +text+, truncated to +max_chars+ characters, excluding any HTML
diff --git a/app/helpers/issues_helper.rb b/app/helpers/issues_helper.rb
index 24b90fef4f..4cb8adceba 100644
--- a/app/helpers/issues_helper.rb
+++ b/app/helpers/issues_helper.rb
@@ -52,6 +52,7 @@ module IssuesHelper
 
   def milestone_options(object)
     milestones = object.project.milestones.active.reorder(due_date: :asc, title: :asc).to_a
+    milestones.unshift(object.milestone) if object.milestone.present? && object.milestone.closed?
     milestones.unshift(Milestone::None)
 
     options_from_collection_for_select(milestones, 'id', 'title', object.milestone_id)
@@ -115,17 +116,32 @@ module IssuesHelper
     icon('eye-slash') if issue.confidential?
   end
 
-  def emoji_icon(name, unicode = nil, aliases = [])
+  def emoji_icon(name, unicode = nil, aliases = [], sprite: true)
     unicode ||= Emoji.emoji_filename(name) rescue ""
 
-    content_tag :div, "",
-      class: "icon emoji-icon emoji-#{unicode}",
-      title: name,
-      data: {
-        aliases: aliases.join(' '),
-        emoji: name,
-        unicode_name: unicode
-      }
+    data = {
+      aliases: aliases.join(" "),
+      emoji: name,
+      unicode_name: unicode
+    }
+
+    if sprite
+      # Emoji icons for the emoji menu, these use a spritesheet.
+      content_tag :div, "",
+        class: "icon emoji-icon emoji-#{unicode}",
+        title: name,
+        data: data
+    else 
+      # Emoji icons displayed separately, used for the awards already given
+      # to an issue or merge request.
+      content_tag :img, "",
+        class: "icon emoji",
+        title: name,
+        height: "20px",
+        width: "20px",
+        src: url_to_image("#{unicode}.png"),
+        data: data
+    end
   end
 
   def emoji_author_list(notes, current_user)
diff --git a/app/helpers/namespaces_helper.rb b/app/helpers/namespaces_helper.rb
index faba418c4d..94c6b548ec 100644
--- a/app/helpers/namespaces_helper.rb
+++ b/app/helpers/namespaces_helper.rb
@@ -3,8 +3,16 @@ module NamespacesHelper
     groups = current_user.owned_groups + current_user.masters_groups
     users = [current_user.namespace]
 
-    group_opts = ["Groups", groups.sort_by(&:human_name).map {|g| [display_path ? g.path : g.human_name, g.id]} ]
-    users_opts = [ "Users", users.sort_by(&:human_name).map {|u| [display_path ? u.path : u.human_name, u.id]} ]
+    data_attr_group = { 'data-options-parent' => 'groups' }
+    data_attr_users = { 'data-options-parent' => 'users' }
+
+    group_opts = [
+      "Groups", groups.sort_by(&:human_name).map { |g| [display_path ? g.path : g.human_name, g.id, data_attr_group] }
+    ]
+
+    users_opts = [
+      "Users", users.sort_by(&:human_name).map { |u| [display_path ? u.path : u.human_name, u.id, data_attr_users] }
+    ]
 
     options = []
     options << group_opts
diff --git a/app/helpers/notes_helper.rb b/app/helpers/notes_helper.rb
index 698f90cb27..95072b5373 100644
--- a/app/helpers/notes_helper.rb
+++ b/app/helpers/notes_helper.rb
@@ -69,10 +69,7 @@ module NotesHelper
       line_type:     line_type
     }
 
-    button_tag class: 'btn btn-nr reply-btn js-discussion-reply-button',
-               data: data, title: 'Add a reply' do
-      link_text = icon('comment')
-      link_text << ' Reply'
-    end
+    button_tag 'Reply...', class: 'btn btn-text-field js-discussion-reply-button',
+                           data: data, title: 'Add a reply'
   end
 end
diff --git a/app/models/repository.rb b/app/models/repository.rb
index a8e826c9cb..462b48118e 100644
--- a/app/models/repository.rb
+++ b/app/models/repository.rb
@@ -331,6 +331,8 @@ class Repository
   # Runs code after a repository has been created.
   def after_create
     expire_exists_cache
+    expire_root_ref_cache
+    expire_emptiness_caches
   end
 
   # Runs code just before a repository is deleted.
@@ -894,9 +896,9 @@ class Repository
   end
 
   def main_language
-    unless empty?
-      Linguist::Repository.new(rugged, rugged.head.target_id).language
-    end
+    return if empty? || rugged.head_unborn?
+
+    Linguist::Repository.new(rugged, rugged.head.target_id).language
   end
 
   def avatar
diff --git a/app/services/git_push_service.rb b/app/services/git_push_service.rb
index 36c9ee92da..dc74c02760 100644
--- a/app/services/git_push_service.rb
+++ b/app/services/git_push_service.rb
@@ -55,15 +55,15 @@ class GitPushService < BaseService
   end
 
   def update_main_language
+    # Performance can be bad so for now only check main_language once
+    # See https://gitlab.com/gitlab-org/gitlab-ce/issues/14937
+    return if @project.main_language.present?
+
     return unless is_default_branch?
     return unless push_to_new_branch? || push_to_existing_branch?
 
     current_language = @project.repository.main_language
-
-    unless current_language == @project.main_language
-      return @project.update_attributes(main_language: current_language)
-    end
-
+    @project.update_attributes(main_language: current_language)
     true
   end
 
diff --git a/app/services/milestones/create_service.rb b/app/services/milestones/create_service.rb
index b8e08c9f1e..3b90399af6 100644
--- a/app/services/milestones/create_service.rb
+++ b/app/services/milestones/create_service.rb
@@ -3,7 +3,7 @@ module Milestones
     def execute
       milestone = project.milestones.new(params)
 
-      if milestone.save
+      if milestone.save!
         event_service.open_milestone(milestone, current_user)
       end
 
diff --git a/app/services/notes/delete_service.rb b/app/services/notes/delete_service.rb
new file mode 100644
index 0000000000..7f1b30ec84
--- /dev/null
+++ b/app/services/notes/delete_service.rb
@@ -0,0 +1,8 @@
+module Notes
+  class DeleteService < BaseService
+    def execute(note)
+      note.destroy
+      note.reset_events_cache
+    end
+  end
+end
diff --git a/app/services/projects/import_export/import_export.yml b/app/services/projects/import_export/import_export.yml
index cc82135a8d..f7a0d8fe6c 100644
--- a/app/services/projects/import_export/import_export.yml
+++ b/app/services/projects/import_export/import_export.yml
@@ -12,8 +12,8 @@
   - :merge_requests:
     - :merge_request_diff
     - :notes
-  - :commit_statuses:
-    - :commit
+  - :ci_commits:
+    - :statuses
 
 # Only include the following attributes for the models specified.
 :attributes_only:
diff --git a/app/services/projects/import_export/project_tree_saver.rb b/app/services/projects/import_export/project_tree_saver.rb
index b2ca85bd7c..37bf3e8e54 100644
--- a/app/services/projects/import_export/project_tree_saver.rb
+++ b/app/services/projects/import_export/project_tree_saver.rb
@@ -20,7 +20,7 @@ module Projects
         File.write(full_path, project_json_tree)
         true
       rescue
-        #TODO: handle error
+        # TODO: handle error
         false
       end
 
diff --git a/app/views/abuse_reports/new.html.haml b/app/views/abuse_reports/new.html.haml
index 3bc1b24b5e..06be1a5331 100644
--- a/app/views/abuse_reports/new.html.haml
+++ b/app/views/abuse_reports/new.html.haml
@@ -3,11 +3,9 @@
 %p Please use this form to report users who create spam issues, comments or behave inappropriately.
 %hr
 = form_for @abuse_report, html: { class: 'form-horizontal js-quick-submit js-requires-input'} do |f|
+  = form_errors(@abuse_report)
+
   = f.hidden_field :user_id
-  - if @abuse_report.errors.any?
-    .alert.alert-danger
-      - @abuse_report.errors.full_messages.each do |msg|
-        %p= msg
   .form-group
     = f.label :user_id, class: 'control-label'
     .col-sm-10
diff --git a/app/views/admin/appearances/_form.html.haml b/app/views/admin/appearances/_form.html.haml
index 6f325914d1..d88f3ad314 100644
--- a/app/views/admin/appearances/_form.html.haml
+++ b/app/views/admin/appearances/_form.html.haml
@@ -1,8 +1,5 @@
 = form_for @appearance, url: admin_appearances_path, html: { class: 'form-horizontal'} do |f|
-  - if @appearance.errors.any?
-    .alert.alert-danger
-      - @appearance.errors.full_messages.each do |msg|
-        %p= msg
+  = form_errors(@appearance)
 
   %fieldset.sign-in
     %legend
diff --git a/app/views/admin/application_settings/_form.html.haml b/app/views/admin/application_settings/_form.html.haml
index de86dacbb1..a8cca1a81c 100644
--- a/app/views/admin/application_settings/_form.html.haml
+++ b/app/views/admin/application_settings/_form.html.haml
@@ -1,9 +1,5 @@
 = form_for @application_setting, url: admin_application_settings_path, html: { class: 'form-horizontal fieldset-form' } do |f|
-  - if @application_setting.errors.any?
-    #error_explanation
-      .alert.alert-danger
-        - @application_setting.errors.full_messages.each do |msg|
-          %p= msg
+  = form_errors(@application_setting)
 
   %fieldset
     %legend Visibility and Access Controls
diff --git a/app/views/admin/applications/_form.html.haml b/app/views/admin/applications/_form.html.haml
index e18f7b499d..4aacbb8cd7 100644
--- a/app/views/admin/applications/_form.html.haml
+++ b/app/views/admin/applications/_form.html.haml
@@ -1,9 +1,6 @@
 = form_for [:admin, @application], url: @url, html: {class: 'form-horizontal', role: 'form'} do |f|
-  - if application.errors.any?
-    .alert.alert-danger
-      %button{ type: "button", class: "close", "data-dismiss" => "alert"} &times;
-      - application.errors.full_messages.each do |msg|
-        %p= msg
+  = form_errors(application)
+
   = content_tag :div, class: 'form-group' do
     = f.label :name, class: 'col-sm-2 control-label'
     .col-sm-10
diff --git a/app/views/admin/broadcast_messages/_form.html.haml b/app/views/admin/broadcast_messages/_form.html.haml
index b748460a9f..6b157abf84 100644
--- a/app/views/admin/broadcast_messages/_form.html.haml
+++ b/app/views/admin/broadcast_messages/_form.html.haml
@@ -4,10 +4,8 @@
     = render_broadcast_message(@broadcast_message.message.presence || "Your message here")
 
 = form_for [:admin, @broadcast_message], html: { class: 'broadcast-message-form form-horizontal js-quick-submit js-requires-input'} do |f|
-  -if @broadcast_message.errors.any?
-    .alert.alert-danger
-      - @broadcast_message.errors.full_messages.each do |msg|
-        %p= msg
+  = form_errors(@broadcast_message)
+
   .form-group
     = f.label :message, class: 'control-label'
     .col-sm-10
diff --git a/app/views/admin/deploy_keys/new.html.haml b/app/views/admin/deploy_keys/new.html.haml
index 5b46b3222a..15aa059c93 100644
--- a/app/views/admin/deploy_keys/new.html.haml
+++ b/app/views/admin/deploy_keys/new.html.haml
@@ -4,11 +4,7 @@
 
 %div
   = form_for [:admin, @deploy_key], html: { class: 'deploy-key-form form-horizontal' } do |f|
-    -if @deploy_key.errors.any?
-      .alert.alert-danger
-        %ul
-          - @deploy_key.errors.full_messages.each do |msg|
-            %li= msg
+    = form_errors(@deploy_key)
 
     .form-group
       = f.label :title, class: "control-label"
diff --git a/app/views/admin/groups/_form.html.haml b/app/views/admin/groups/_form.html.haml
index 7f2b1cd235..0cc405401c 100644
--- a/app/views/admin/groups/_form.html.haml
+++ b/app/views/admin/groups/_form.html.haml
@@ -1,8 +1,5 @@
 = form_for [:admin, @group], html: { class: "form-horizontal" } do |f|
-  - if @group.errors.any?
-    .alert.alert-danger
-      %span= @group.errors.full_messages.first
-
+  = form_errors(@group)
   = render 'shared/group_form', f: f
 
   .form-group.group-description-holder
diff --git a/app/views/admin/hooks/index.html.haml b/app/views/admin/hooks/index.html.haml
index 53b3cd04c6..ad952052f2 100644
--- a/app/views/admin/hooks/index.html.haml
+++ b/app/views/admin/hooks/index.html.haml
@@ -10,10 +10,8 @@
 
 
 = form_for @hook, as: :hook, url: admin_hooks_path, html: { class: 'form-horizontal' } do |f|
-  -if @hook.errors.any?
-    .alert.alert-danger
-      - @hook.errors.full_messages.each do |msg|
-        %p= msg
+  = form_errors(@hook)
+
   .form-group
     = f.label :url, "URL:", class: 'control-label'
     .col-sm-10
diff --git a/app/views/admin/identities/_form.html.haml b/app/views/admin/identities/_form.html.haml
index 3a78855822..112a201faf 100644
--- a/app/views/admin/identities/_form.html.haml
+++ b/app/views/admin/identities/_form.html.haml
@@ -1,9 +1,5 @@
 = form_for [:admin, @user, @identity], html: { class: 'form-horizontal fieldset-form' } do |f|
-  - if @identity.errors.any?
-    #error_explanation
-      .alert.alert-danger
-        - @identity.errors.full_messages.each do |msg|
-          %p= msg
+  = form_errors(@identity)
 
   .form-group
     = f.label :provider, class: 'control-label'
diff --git a/app/views/admin/labels/_form.html.haml b/app/views/admin/labels/_form.html.haml
index 8c6b389bf1..448aa95354 100644
--- a/app/views/admin/labels/_form.html.haml
+++ b/app/views/admin/labels/_form.html.haml
@@ -1,11 +1,5 @@
 = form_for [:admin, @label], html: { class: 'form-horizontal label-form js-requires-input' } do |f|
-  -if @label.errors.any?
-    .row
-      .col-sm-offset-2.col-sm-10
-        .alert.alert-danger
-          - @label.errors.full_messages.each do |msg|
-            %span= msg
-            %br
+  = form_errors(@label)
 
   .form-group
     = f.label :title, class: 'control-label'
diff --git a/app/views/admin/users/_form.html.haml b/app/views/admin/users/_form.html.haml
index d2527ede99..b05fdbd555 100644
--- a/app/views/admin/users/_form.html.haml
+++ b/app/views/admin/users/_form.html.haml
@@ -1,10 +1,6 @@
 .user_new
   = form_for [:admin, @user], html: { class: 'form-horizontal fieldset-form' } do |f|
-    -if @user.errors.any?
-      #error_explanation
-        .alert.alert-danger
-          - @user.errors.full_messages.each do |msg|
-            %p= msg
+    = form_errors(@user)
 
     %fieldset
       %legend Account
diff --git a/app/views/doorkeeper/applications/_form.html.haml b/app/views/doorkeeper/applications/_form.html.haml
index 906b067615..5c98265727 100644
--- a/app/views/doorkeeper/applications/_form.html.haml
+++ b/app/views/doorkeeper/applications/_form.html.haml
@@ -1,9 +1,5 @@
 = form_for application, url: doorkeeper_submit_path(application), html: {role: 'form'} do |f|
-  - if application.errors.any?
-    .alert.alert-danger
-      %ul
-        - application.errors.full_messages.each do |msg|
-          %li= msg
+  = form_errors(application)
 
   .form-group
     = f.label :name, class: 'label-light'
diff --git a/app/views/groups/edit.html.haml b/app/views/groups/edit.html.haml
index ea5a035839..a698cbbe9d 100644
--- a/app/views/groups/edit.html.haml
+++ b/app/views/groups/edit.html.haml
@@ -5,9 +5,7 @@
     Group settings
   .panel-body
     = form_for @group, html: { multipart: true, class: "form-horizontal" }, authenticity_token: true do |f|
-      - if @group.errors.any?
-        .alert.alert-danger
-          %span= @group.errors.full_messages.first
+      = form_errors(@group)
       = render 'shared/group_form', f: f
 
       .form-group
diff --git a/app/views/groups/milestones/new.html.haml b/app/views/groups/milestones/new.html.haml
index a8e1ed77da..4290e0bf72 100644
--- a/app/views/groups/milestones/new.html.haml
+++ b/app/views/groups/milestones/new.html.haml
@@ -10,6 +10,14 @@
 
 = form_for @milestone, url: group_milestones_path(@group), html: { class: 'form-horizontal milestone-form gfm-form js-quick-submit js-requires-input' }  do |f|
   .row
+    - if @milestone.errors.any?
+      #error_explanation
+        .alert.alert-danger
+          %ul
+            - @milestone.errors.full_messages.each do |msg|
+              %li
+                = msg
+
     .col-md-6
       .form-group
         = f.label :title, "Title", class: "control-label"
diff --git a/app/views/groups/new.html.haml b/app/views/groups/new.html.haml
index 30ab8aeba1..2b8bc269e6 100644
--- a/app/views/groups/new.html.haml
+++ b/app/views/groups/new.html.haml
@@ -6,10 +6,7 @@
 %hr
 
 = form_for @group, html: { class: 'group-form form-horizontal' } do |f|
-  - if @group.errors.any?
-    .alert.alert-danger
-      %span= @group.errors.full_messages.first
-
+  = form_errors(@group)
   = render 'shared/group_form', f: f, autofocus: true
 
   .form-group.group-description-holder
diff --git a/app/views/layouts/_collapse_button.html.haml b/app/views/layouts/_collapse_button.html.haml
new file mode 100644
index 0000000000..2ed51d87ca
--- /dev/null
+++ b/app/views/layouts/_collapse_button.html.haml
@@ -0,0 +1,4 @@
+- if nav_menu_collapsed?
+  = link_to icon('angle-right'), '#', class: 'toggle-nav-collapse', title: "Open/Close"
+- else
+  = link_to icon('angle-left'), '#', class: 'toggle-nav-collapse', title: "Open/Close"
diff --git a/app/views/layouts/_page.html.haml b/app/views/layouts/_page.html.haml
index 9be36273c7..c799e9c588 100644
--- a/app/views/layouts/_page.html.haml
+++ b/app/views/layouts/_page.html.haml
@@ -1,7 +1,5 @@
 .page-with-sidebar{ class: "#{page_sidebar_class} #{page_gutter_class}" }
   = render "layouts/broadcast"
-  .expand-nav
-    = link_to icon('bars'), '#', class: 'toggle-nav-collapse', title: "Open sidebar"
   .sidebar-wrapper.nicescroll{ class: nav_sidebar_class }
     .header-logo
       %a#logo
@@ -10,19 +8,15 @@
         .gitlab-text-container
           %h3 GitLab
 
-    - primary_sidebar = current_user ? 'dashboard' : 'explore'
-
-    - if defined?(sidebar) && sidebar && sidebar != primary_sidebar
-      .complex-sidebar
-        .nav-primary
-          = render "layouts/nav/#{primary_sidebar}"
-        .nav-secondary
-          = render "layouts/nav/#{sidebar}"
+    - if defined?(sidebar) && sidebar
+      = render "layouts/nav/#{sidebar}"
+    - elsif current_user
+      = render 'layouts/nav/dashboard'
     - else
-      = render "layouts/nav/#{primary_sidebar}"
+      = render 'layouts/nav/explore'
 
     .collapse-nav
-      = link_to icon('angle-left'), '#', class: 'toggle-nav-collapse', title: "Hide sidebar"
+      = render partial: 'layouts/collapse_button'
     - if current_user
       = link_to current_user, class: 'sidebar-user', title: "Profile" do
         = image_tag avatar_icon(current_user, 60), alt: 'Profile', class: 'avatar avatar s36'
diff --git a/app/views/layouts/_search.html.haml b/app/views/layouts/_search.html.haml
index 9d4ab9847a..6b208c3d0b 100644
--- a/app/views/layouts/_search.html.haml
+++ b/app/views/layouts/_search.html.haml
@@ -1,6 +1,6 @@
-- if controller.controller_path =~ /^groups/
+- if controller.controller_path =~ /^groups/ && @group.persisted?
   - label = 'This group'
-- if controller.controller_path =~ /^projects/
+- if controller.controller_path =~ /^projects/ && @project.persisted?
   - label = 'This project'
 
 .search.search-form{class: "#{'has-location-badge' if label.present?}"}
@@ -21,8 +21,8 @@
                   %a.is-focused.dropdown-menu-empty-link
                     Loading...
             = dropdown_loading
-        %i.search-icon
-        %i.clear-icon.js-clear-input
+          %i.search-icon
+          %i.clear-icon.js-clear-input
 
     = hidden_field_tag :group_id, @group.try(:id)
     = hidden_field_tag :project_id, @project && @project.persisted? ? @project.id : '', id: 'search_project_id'
diff --git a/app/views/layouts/nav/_admin.html.haml b/app/views/layouts/nav/_admin.html.haml
index 22d1d4d859..280a1b9372 100644
--- a/app/views/layouts/nav/_admin.html.haml
+++ b/app/views/layouts/nav/_admin.html.haml
@@ -95,7 +95,7 @@
           Spam Logs
           %span.count= number_with_delimiter(SpamLog.count(:all))
 
-  = nav_link(controller: :application_settings) do
+  = nav_link(controller: :application_settings, html_options: { class: 'separate-item'}) do
     = link_to admin_application_settings_path, title: 'Settings' do
       = icon('cogs fw')
       %span
diff --git a/app/views/layouts/nav/_dashboard.html.haml b/app/views/layouts/nav/_dashboard.html.haml
index d1a180e429..5cef652da1 100644
--- a/app/views/layouts/nav/_dashboard.html.haml
+++ b/app/views/layouts/nav/_dashboard.html.haml
@@ -9,18 +9,18 @@
       = icon('bell fw')
       %span
         Todos
-        %span.count= number_with_delimiter(todos_pending_count)
+        %span.count.todos-pending-count= number_with_delimiter(todos_pending_count)
   = nav_link(path: 'dashboard#activity') do
     = link_to activity_dashboard_path, class: 'shortcuts-activity', title: 'Activity' do
       = icon('dashboard fw')
       %span
         Activity
-  = nav_link(path: ['dashboard/groups#index', 'explore/groups#index']) do
+  = nav_link(controller: :groups) do
     = link_to dashboard_groups_path, title: 'Groups' do
       = icon('group fw')
       %span
         Groups
-  = nav_link(path: 'dashboard#milestones') do
+  = nav_link(controller: :milestones) do
     = link_to dashboard_milestones_path, title: 'Milestones' do
       = icon('clock-o fw')
       %span
@@ -48,6 +48,7 @@
       %span
         Help
 
+  %li.separate-item
   = nav_link(controller: :profile) do
     = link_to profile_path, title: 'Profile Settings', data: {placement: 'bottom'} do
       = icon('user fw')
diff --git a/app/views/layouts/nav/_group.html.haml b/app/views/layouts/nav/_group.html.haml
index 0b7de9633e..55940741dc 100644
--- a/app/views/layouts/nav/_group.html.haml
+++ b/app/views/layouts/nav/_group.html.haml
@@ -1,4 +1,12 @@
 %ul.nav.nav-sidebar
+  = nav_link do
+    = link_to root_path, title: 'Go to dashboard', class: 'back-link' do
+      = icon('caret-square-o-left fw')
+      %span
+        Go to dashboard
+
+  %li.separate-item
+
   = nav_link(path: 'groups#show', html_options: {class: 'home'}) do
     = link_to group_path(@group), title: 'Home' do
       = icon('group fw')
@@ -34,7 +42,7 @@
       %span
         Members
   - if can?(current_user, :admin_group, @group)
-    = nav_link do
+    = nav_link(html_options: { class: "separate-item" }) do
       = link_to edit_group_path(@group), title: 'Settings' do
         = icon ('cogs fw')
         %span
diff --git a/app/views/layouts/nav/_profile.html.haml b/app/views/layouts/nav/_profile.html.haml
index cc119fd64e..3b9d31a6fc 100644
--- a/app/views/layouts/nav/_profile.html.haml
+++ b/app/views/layouts/nav/_profile.html.haml
@@ -1,4 +1,12 @@
 %ul.nav.nav-sidebar
+  = nav_link do
+    = link_to root_path, title: 'Go to dashboard', class: 'back-link' do
+      = icon('caret-square-o-left fw')
+      %span
+        Go to dashboard
+
+  %li.separate-item
+
   = nav_link(path: 'profiles#show', html_options: {class: 'home'}) do
     = link_to profile_path, title: 'Profile Settings' do
       = icon('user fw')
diff --git a/app/views/layouts/nav/_project.html.haml b/app/views/layouts/nav/_project.html.haml
index d0f82b5f57..86b46e8c75 100644
--- a/app/views/layouts/nav/_project.html.haml
+++ b/app/views/layouts/nav/_project.html.haml
@@ -1,4 +1,19 @@
 %ul.nav.nav-sidebar
+  - if @project.group
+    = nav_link do
+      = link_to group_path(@project.group), title: 'Go to group', class: 'back-link' do
+        = icon('caret-square-o-left fw')
+        %span
+          Go to group
+  - else
+    = nav_link do
+      = link_to root_path, title: 'Go to dashboard', class: 'back-link' do
+        = icon('caret-square-o-left fw')
+        %span
+          Go to dashboard
+
+  %li.separate-item
+
   = nav_link(path: 'projects#show', html_options: {class: 'home'}) do
     = link_to project_path(@project), title: 'Project', class: 'shortcuts-project' do
       = icon('bookmark fw')
@@ -98,7 +113,7 @@
           Snippets
 
   - if project_nav_tab? :settings
-    = nav_link(html_options: {class: "#{project_tab_class}"}) do
+    = nav_link(html_options: {class: "#{project_tab_class} separate-item"}) do
       = link_to edit_project_path(@project), title: 'Settings' do
         = icon('cogs fw')
         %span
diff --git a/app/views/layouts/nav/_project_settings.html.haml b/app/views/layouts/nav/_project_settings.html.haml
index dc3050f02e..d429a92846 100644
--- a/app/views/layouts/nav/_project_settings.html.haml
+++ b/app/views/layouts/nav/_project_settings.html.haml
@@ -51,8 +51,13 @@
           = icon('code fw')
           %span
             Variables
-      = nav_link path: 'triggers#index' do
+      = nav_link(controller: :triggers) do
         = link_to namespace_project_triggers_path(@project.namespace, @project), title: 'Triggers' do
           = icon('retweet fw')
           %span
             Triggers
+      = nav_link(controller: :badges) do
+        = link_to namespace_project_badges_path(@project.namespace, @project), title: 'Badges' do
+          = icon('star-half-empty fw')
+          %span
+            Badges
diff --git a/app/views/layouts/project.html.haml b/app/views/layouts/project.html.haml
index ab527e8e43..a7ef31acd3 100644
--- a/app/views/layouts/project.html.haml
+++ b/app/views/layouts/project.html.haml
@@ -5,10 +5,14 @@
 
 - content_for :scripts_body_top do
   - project = @target_project || @project
+  - if @project_wiki
+    - markdown_preview_path = namespace_project_wikis_markdown_preview_path(project.namespace, project)
+  - else
+    - markdown_preview_path = markdown_preview_namespace_project_path(project.namespace, project)
   - if current_user
     :javascript
       window.project_uploads_path = "#{namespace_project_uploads_path project.namespace,project}";
-      window.markdown_preview_path = "#{markdown_preview_namespace_project_path(project.namespace, project)}";
+      window.markdown_preview_path = "#{markdown_preview_path}";
 
 - content_for :scripts_body do
   = render "layouts/init_auto_complete" if current_user
diff --git a/app/views/profiles/keys/_form.html.haml b/app/views/profiles/keys/_form.html.haml
index 4d78215ed3..b3ed59a1a4 100644
--- a/app/views/profiles/keys/_form.html.haml
+++ b/app/views/profiles/keys/_form.html.haml
@@ -1,10 +1,6 @@
 %div
   = form_for [:profile, @key], html: { class: 'js-requires-input' } do |f|
-    - if @key.errors.any?
-      .alert.alert-danger
-        %ul
-          - @key.errors.full_messages.each do |msg|
-            %li= msg
+    = form_errors(@key)
 
     .form-group
       = f.label :key, class: 'label-light'
diff --git a/app/views/profiles/notifications/show.html.haml b/app/views/profiles/notifications/show.html.haml
index 3d15c0d932..6609295a2a 100644
--- a/app/views/profiles/notifications/show.html.haml
+++ b/app/views/profiles/notifications/show.html.haml
@@ -2,11 +2,7 @@
 - header_title page_title, profile_notifications_path
 
 = form_for @user, url: profile_notifications_path, method: :put, html: { class: 'update-notifications prepend-top-default' } do |f|
-  -if @user.errors.any?
-    %div.alert.alert-danger
-      %ul
-        - @user.errors.full_messages.each do |msg|
-          %li= msg
+  = form_errors(@user)
 
   = hidden_field_tag :notification_type, 'global'
   .row
diff --git a/app/views/profiles/passwords/edit.html.haml b/app/views/profiles/passwords/edit.html.haml
index 44d758dceb..5ac8a8b9d0 100644
--- a/app/views/profiles/passwords/edit.html.haml
+++ b/app/views/profiles/passwords/edit.html.haml
@@ -13,11 +13,8 @@
       - unless @user.password_automatically_set?
         or recover your current one
     = form_for @user, url: profile_password_path, method: :put, html: {class: "update-password"} do |f|
-      -if @user.errors.any?
-        .alert.alert-danger
-          %ul
-            - @user.errors.full_messages.each do |msg|
-              %li= msg
+      = form_errors(@user)
+
       - unless @user.password_automatically_set?
         .form-group
           = f.label :current_password, class: 'label-light'
diff --git a/app/views/profiles/passwords/new.html.haml b/app/views/profiles/passwords/new.html.haml
index d165f758c8..2eb9fac57c 100644
--- a/app/views/profiles/passwords/new.html.haml
+++ b/app/views/profiles/passwords/new.html.haml
@@ -7,11 +7,8 @@
     Please set a new password before proceeding.
     %br
     After a successful password update you will be redirected to login screen.
-  -if @user.errors.any?
-    .alert.alert-danger
-      %ul
-        - @user.errors.full_messages.each do |msg|
-          %li= msg
+
+  = form_errors(@user)
 
   - unless @user.password_automatically_set?
     .form-group
diff --git a/app/views/profiles/show.html.haml b/app/views/profiles/show.html.haml
index dcb3be9585..f59d27f7ed 100644
--- a/app/views/profiles/show.html.haml
+++ b/app/views/profiles/show.html.haml
@@ -1,9 +1,6 @@
 = form_for @user, url: profile_path, method: :put, html: { multipart: true, class: "edit-user prepend-top-default" }, authenticity_token: true do |f|
-  -if @user.errors.any?
-    %div.alert.alert-danger
-      %ul
-        - @user.errors.full_messages.each do |msg|
-          %li= msg
+  = form_errors(@user)
+
   .row
     .col-lg-3.profile-settings-sidebar
       %h4.prepend-top-0
diff --git a/app/views/projects/_errors.html.haml b/app/views/projects/_errors.html.haml
index 7c8bb33ed7..2dba22d3be 100644
--- a/app/views/projects/_errors.html.haml
+++ b/app/views/projects/_errors.html.haml
@@ -1,4 +1 @@
-- if @project.errors.any?
-  .alert.alert-danger
-    %button{ type: "button", class: "close", "data-dismiss" => "alert"} &times;
-    = @project.errors.full_messages.first
+= form_errors(@project)
diff --git a/app/views/projects/_md_preview.html.haml b/app/views/projects/_md_preview.html.haml
index 4920910fee..7a78d61a61 100644
--- a/app/views/projects/_md_preview.html.haml
+++ b/app/views/projects/_md_preview.html.haml
@@ -2,13 +2,13 @@
   .md-header
     %ul.nav-links
       %li.active
-        %a.js-md-write-button{ href: "#md-write-holder" }
+        %a.js-md-write-button{ href: "#md-write-holder", tabindex: -1 }
           Write
       %li
-        %a.js-md-preview-button{ href: "#md-preview-holder" }
+        %a.js-md-preview-button{ href: "#md-preview-holder", tabindex: -1 }
           Preview
       %li.pull-right
-        %button.zen-cotrol.zen-control-full.js-zen-enter{ type: 'button' }
+        %button.zen-cotrol.zen-control-full.js-zen-enter{ type: 'button', tabindex: -1 }
           Go full screen
 
   .md-write-holder
diff --git a/app/views/projects/badges/index.html.haml b/app/views/projects/badges/index.html.haml
new file mode 100644
index 0000000000..c22384ddf4
--- /dev/null
+++ b/app/views/projects/badges/index.html.haml
@@ -0,0 +1,24 @@
+- page_title 'Badges'
+- badges_path = namespace_project_badges_path(@project.namespace, @project)
+- header_title project_title(@project, 'Badges', badges_path)
+
+.prepend-top-10
+  .panel.panel-default
+    .panel-heading
+      %b Builds badge &middot;
+      = @build_badge.to_html
+      .pull-right
+        = render 'shared/ref_switcher', destination: 'badges'
+    .panel-body
+      .row
+        .col-md-2.text-center
+          Markdown
+        .col-md-10.code.js-syntax-highlight
+          = highlight('.md', @build_badge.to_markdown)
+      .row
+        %hr
+      .row
+        .col-md-2.text-center
+          HTML
+        .col-md-10.code.js-syntax-highlight
+          = highlight('.html', @build_badge.to_html)
diff --git a/app/views/projects/commits/_commit.html.haml b/app/views/projects/commits/_commit.html.haml
index 7f2903589a..7da8923124 100644
--- a/app/views/projects/commits/_commit.html.haml
+++ b/app/views/projects/commits/_commit.html.haml
@@ -19,24 +19,17 @@
       .pull-right
         - if ci_commit
           = render_ci_status(ci_commit)
-          &nbsp;
         = clipboard_button(clipboard_text: commit.id)
         = link_to commit.short_id, namespace_project_commit_path(project.namespace, project, commit), class: "commit_short_id"
 
-      .notes_count
-        - if note_count > 0
-          %span.light
-            %i.fa.fa-comments
-            = note_count
-
     - if commit.description?
       .commit-row-description.js-toggle-content
         %pre
           = preserve(markdown(escape_once(commit.description), pipeline: :single_line))
 
     .commit-row-info
+      by
       = commit_author_link(commit, avatar: true, size: 24)
-      authored
       .committed_ago
         #{time_ago_with_tooltip(commit.committed_date, skip_js: true)} &nbsp;
       = link_to_browse_code(project, commit)
diff --git a/app/views/projects/deploy_keys/_form.html.haml b/app/views/projects/deploy_keys/_form.html.haml
index 5e182af266..f6565f8583 100644
--- a/app/views/projects/deploy_keys/_form.html.haml
+++ b/app/views/projects/deploy_keys/_form.html.haml
@@ -1,10 +1,6 @@
 %div
   = form_for [@project.namespace.becomes(Namespace), @project, @key], url: namespace_project_deploy_keys_path, html: { class: 'deploy-key-form form-horizontal js-requires-input' } do |f|
-    -if @key.errors.any?
-      .alert.alert-danger
-        %ul
-          - @key.errors.full_messages.each do |msg|
-            %li= msg
+    = form_errors(@key)
 
     .form-group
       = f.label :title, class: "control-label"
diff --git a/app/views/projects/diffs/_diffs.html.haml b/app/views/projects/diffs/_diffs.html.haml
index 2e1a37aa06..eaab99973a 100644
--- a/app/views/projects/diffs/_diffs.html.haml
+++ b/app/views/projects/diffs/_diffs.html.haml
@@ -3,7 +3,7 @@
 
 - diff_files = safe_diff_files(diffs, diff_refs)
 
-.content-block.oneline-block
+.content-block.oneline-block.files-changed
   .inline-parallel-buttons
     .btn-group
       = inline_diff_btn
diff --git a/app/views/projects/diffs/_file.html.haml b/app/views/projects/diffs/_file.html.haml
index 698ed02ea0..83a8d7ae9b 100644
--- a/app/views/projects/diffs/_file.html.haml
+++ b/app/views/projects/diffs/_file.html.haml
@@ -3,7 +3,7 @@
     - if diff_file.diff.submodule?
       %span
         = icon('archive fw')
-        %strong
+        %span
           = submodule_link(blob, @commit.id, project.repository)
     - else
       = blob_icon blob.mode, blob.name
@@ -11,13 +11,13 @@
       = link_to "#diff-#{i}" do
         - if diff_file.renamed_file
           - old_path, new_path = mark_inline_diffs(diff_file.old_path, diff_file.new_path)
-          %strong.filename.old
+          .filename.old
             = old_path
           &rarr;
-          %strong.filename.new
+          .filename.new
             = new_path
         - else
-          %strong
+          %span
             = diff_file.new_path
           - if diff_file.deleted_file
             deleted
@@ -28,8 +28,8 @@
 
       .file-actions.hidden-xs
         - if blob_text_viewable?(blob)
-          = link_to '#', class: 'js-toggle-diff-comments btn active has-tooltip', title: "Toggle comments for this file" do
-            = icon('comments')
+          = link_to '#', class: 'js-toggle-diff-comments btn active has-tooltip btn-file-option', title: "Toggle comments for this file" do
+            = icon('comment')
           \
 
         - if editable_diff?(diff_file)
diff --git a/app/views/projects/hooks/index.html.haml b/app/views/projects/hooks/index.html.haml
index 67d016bd87..e39224d86c 100644
--- a/app/views/projects/hooks/index.html.haml
+++ b/app/views/projects/hooks/index.html.haml
@@ -9,10 +9,8 @@
 %hr.clearfix
 
 = form_for [@project.namespace.becomes(Namespace), @project, @hook], as: :hook, url: namespace_project_hooks_path(@project.namespace, @project), html: { class: 'form-horizontal' } do |f|
-  -if @hook.errors.any?
-    .alert.alert-danger
-      - @hook.errors.full_messages.each do |msg|
-        %p= msg
+  = form_errors(@hook)
+
   .form-group
     = f.label :url, "URL", class: 'control-label'
     .col-sm-10
diff --git a/app/views/projects/labels/_form.html.haml b/app/views/projects/labels/_form.html.haml
index be7a0bb562..aa143e54ff 100644
--- a/app/views/projects/labels/_form.html.haml
+++ b/app/views/projects/labels/_form.html.haml
@@ -1,11 +1,5 @@
 = form_for [@project.namespace.becomes(Namespace), @project, @label], html: { class: 'form-horizontal label-form js-quick-submit js-requires-input' } do |f|
-  -if @label.errors.any?
-    .row
-      .col-sm-offset-2.col-sm-10
-        .alert.alert-danger
-          - @label.errors.full_messages.each do |msg|
-            %span= msg
-            %br
+  = form_errors(@label)
 
   .form-group
     = f.label :title, class: 'control-label'
diff --git a/app/views/projects/labels/_label.html.haml b/app/views/projects/labels/_label.html.haml
index 0612863296..097a65969a 100644
--- a/app/views/projects/labels/_label.html.haml
+++ b/app/views/projects/labels/_label.html.haml
@@ -1,24 +1,27 @@
 %li{id: dom_id(label)}
   = render "shared/label_row", label: label
 
-  .pull-right
-    %strong.append-right-20
+  .pull-info-right
+    %span.append-right-20
       = link_to_label(label, type: :merge_request) do
-        = pluralize label.open_merge_requests_count, 'open merge request'
+        = pluralize label.open_merge_requests_count, 'merge request'
 
-    %strong.append-right-20
+    %span.append-right-20
       = link_to_label(label) do
         = pluralize label.open_issues_count(current_user), 'open issue'
 
     - if current_user
       .label-subscription{data: {url: toggle_subscription_namespace_project_label_path(@project.namespace, @project, label)}}
         .subscription-status{data: {status: label_subscription_status(label)}}
-        %button.btn.btn-sm.btn-info.subscribe-button
+
+        %a.subscribe-button.btn.action-buttons{data: {toggle: "tooltip"}}
           %span= label_subscription_toggle_button_text(label)
 
     - if can? current_user, :admin_label, @project
-      = link_to 'Edit', edit_namespace_project_label_path(@project.namespace, @project, label), class: 'btn btn-sm'
-      = link_to 'Delete', namespace_project_label_path(@project.namespace, @project, label), class: 'btn btn-sm btn-remove remove-row', method: :delete, remote: true, data: {confirm: "Remove this label? Are you sure?"}
+      = link_to edit_namespace_project_label_path(@project.namespace, @project, label), title: "Edit", class: 'btn action-buttons', data: {toggle: "tooltip"} do
+        %i.fa.fa-pencil-square-o
+      = link_to namespace_project_label_path(@project.namespace, @project, label), title: "Delete", class: 'btn action-buttons remove-row', method: :delete, remote: true, data: {confirm: "Remove this label? Are you sure?", toggle: "tooltip"} do
+        %i.fa.fa-trash-o
 
 - if current_user
   :javascript
diff --git a/app/views/projects/merge_requests/_new_compare.html.haml b/app/views/projects/merge_requests/_new_compare.html.haml
index 01dc7519be..7d7c487e97 100644
--- a/app/views/projects/merge_requests/_new_compare.html.haml
+++ b/app/views/projects/merge_requests/_new_compare.html.haml
@@ -5,33 +5,74 @@
   .hide.alert.alert-danger.mr-compare-errors
   .merge-request-branches.row
     .col-md-6
-      .panel.panel-default
+      .panel.panel-default.panel-new-merge-request
         .panel-heading
-          %strong Source branch
-        .panel-body
-          = f.select(:source_project_id, [[@merge_request.source_project_path,@merge_request.source_project.id]] , {}, { class: 'source_project select2 span3', disabled: @merge_request.persisted?, required: true })
-          &nbsp;
-          = f.select(:source_branch, @merge_request.source_branches, { include_blank: true }, { class: 'source_branch select2 span2', required: true, data: { placeholder: "Select source branch" } })
+          Source branch
+        .panel-body.clearfix
+          .merge-request-select.dropdown
+            = f.hidden_field :source_project_id
+            = dropdown_toggle @merge_request.source_project_path, { toggle: "dropdown", field_name: "#{f.object_name}[source_project_id]", disabled: @merge_request.persisted? }, { toggle_class: "js-compare-dropdown js-source-project" }
+            .dropdown-menu.dropdown-menu-selectable.dropdown-source-project
+              = dropdown_title("Select source project")
+              = dropdown_filter("Search projects")
+              = dropdown_content do
+                - is_active = f.object.source_project_id == @merge_request.source_project.id
+                %ul
+                  %li
+                    %a{ href: "#", class: "#{("is-active" if is_active)}", data: { id: @merge_request.source_project.id } }
+                      = @merge_request.source_project_path
+          .merge-request-select.dropdown
+            = f.hidden_field :source_branch
+            = dropdown_toggle "Select source branch", { toggle: "dropdown", field_name: "#{f.object_name}[source_branch]" }, { toggle_class: "js-compare-dropdown js-source-branch" }
+            .dropdown-menu.dropdown-menu-selectable.dropdown-source-branch
+              = dropdown_title("Select source branch")
+              = dropdown_filter("Search branches")
+              = dropdown_content do
+                %ul
+                  - @merge_request.source_branches.each do |branch|
+                    %li
+                      %a{ href: "#", class: "#{("is-active" if f.object.source_branch == branch)}", data: { id: branch } }
+                        = branch
         .panel-footer
-          .mr_source_commit
+          = icon('spinner spin', class: 'js-source-loading')
+          %ul.list-unstyled.mr_source_commit
 
     .col-md-6
-      .panel.panel-default
+      .panel.panel-default.panel-new-merge-request
         .panel-heading
-          %strong Target branch
-        .panel-body
+          Target branch
+        .panel-body.clearfix
           - projects =  @project.forked_from_project.nil? ? [@project] : [@project, @project.forked_from_project]
-          = f.select(:target_project_id, options_from_collection_for_select(projects, 'id', 'path_with_namespace', f.object.target_project_id), {}, { class: 'target_project select2 span3', disabled: @merge_request.persisted?, required: true })
-          &nbsp;
-          = f.select(:target_branch, @merge_request.target_branches, { include_blank: true }, { class: 'target_branch select2 span2', required: true, data: { placeholder: "Select target branch" } })
+          .merge-request-select.dropdown
+            = f.hidden_field :target_project_id
+            = dropdown_toggle f.object.target_project.path_with_namespace, { toggle: "dropdown", field_name: "#{f.object_name}[target_project_id]", disabled: @merge_request.persisted? }, { toggle_class: "js-compare-dropdown js-target-project" }
+            .dropdown-menu.dropdown-menu-selectable.dropdown-target-project
+              = dropdown_title("Select target project")
+              = dropdown_filter("Search projects")
+              = dropdown_content do
+                %ul
+                  - projects.each do |project|
+                    %li
+                      %a{ href: "#", class: "#{("is-active" if f.object.target_project_id == project.id)}", data: { id: project.id } }
+                        = project.path_with_namespace
+          .merge-request-select.dropdown
+            = f.hidden_field :target_branch
+            = dropdown_toggle f.object.target_branch, { toggle: "dropdown", field_name: "#{f.object_name}[target_branch]" }, { toggle_class: "js-compare-dropdown js-target-branch" }
+            .dropdown-menu.dropdown-menu-selectable.dropdown-target-branch.js-target-branch-dropdown
+              = dropdown_title("Select target branch")
+              = dropdown_filter("Search branches")
+              = dropdown_content do
+                %ul
+                  - @merge_request.target_branches.each do |branch|
+                    %li
+                      %a{ href: "#", class: "#{("is-active" if f.object.target_branch == branch)}", data: { id: branch } }
+                        = branch
         .panel-footer
-          .mr_target_commit
+          = icon('spinner spin', class: "js-target-loading")
+          %ul.list-unstyled.mr_target_commit
 
   - if @merge_request.errors.any?
-    .alert.alert-danger
-      - @merge_request.errors.full_messages.each do |msg|
-        %div= msg
-
+    = form_errors(@merge_request)
   - elsif @merge_request.source_branch.present? && @merge_request.target_branch.present?
     .light-well.append-bottom-default
       .center
@@ -45,40 +86,11 @@
             and
             %span.label-branch #{@merge_request.target_branch}
             are the same.
-
-
-  .form-actions
-    = f.submit 'Compare branches and continue', class: "btn btn-new mr-compare-btn"
+  = f.submit 'Compare branches and continue', class: "btn btn-new mr-compare-btn"
 
 :javascript
-  var source_branch = $("#merge_request_source_branch")
-    , target_branch = $("#merge_request_target_branch")
-    , target_project = $("#merge_request_target_project_id");
-
-  $.get("#{branch_from_namespace_project_merge_requests_path(@source_project.namespace, @source_project)}", {ref: source_branch.val() });
-  $.get("#{branch_to_namespace_project_merge_requests_path(@source_project.namespace, @source_project)}", {target_project_id: target_project.val(),ref: target_branch.val() });
-
-  target_project.on("change", function() {
-    $.get("#{update_branches_namespace_project_merge_requests_path(@source_project.namespace, @source_project)}", {target_project_id:  $(this).val() });
-  });
-  source_branch.on("change", function() {
-    $.get("#{branch_from_namespace_project_merge_requests_path(@source_project.namespace, @source_project)}", {ref: $(this).val() });
-    $(".mr-compare-errors").fadeOut();
-    $(".mr-compare-btn").enable();
-  });
-  target_branch.on("change", function() {
-    $.get("#{branch_to_namespace_project_merge_requests_path(@source_project.namespace, @source_project)}", {target_project_id: target_project.val(),ref: $(this).val() });
-    $(".mr-compare-errors").fadeOut();
-    $(".mr-compare-btn").enable();
-  });
-
-
-:javascript
-  $(".merge-request-form").on('submit', function () {
-    if ($("#merge_request_source_branch").val() === "" || $('#merge_request_target_branch').val() === "") {
-      $(".mr-compare-errors").html("You must select source and target branch to proceed");
-      $(".mr-compare-errors").fadeIn();
-      event.preventDefault();
-      return;
-    }
+  new Compare({
+    targetProjectUrl: "#{update_branches_namespace_project_merge_requests_path(@source_project.namespace, @source_project)}",
+    sourceBranchUrl: "#{branch_from_namespace_project_merge_requests_path(@source_project.namespace, @source_project)}",
+    targetBranchUrl: "#{branch_to_namespace_project_merge_requests_path(@source_project.namespace, @source_project)}"
   });
diff --git a/app/views/projects/merge_requests/branch_from.html.haml b/app/views/projects/merge_requests/branch_from.html.haml
new file mode 100644
index 0000000000..4f90dde6fa
--- /dev/null
+++ b/app/views/projects/merge_requests/branch_from.html.haml
@@ -0,0 +1 @@
+= commit_to_html(@commit, @source_project, false)
diff --git a/app/views/projects/merge_requests/branch_from.js.haml b/app/views/projects/merge_requests/branch_from.js.haml
deleted file mode 100644
index 9210798f39..0000000000
--- a/app/views/projects/merge_requests/branch_from.js.haml
+++ /dev/null
@@ -1,3 +0,0 @@
-:plain
-  $(".mr_source_commit").html("#{commit_to_html(@commit, @source_project, false)}");
-  $('.js-timeago').timeago()
diff --git a/app/views/projects/merge_requests/branch_to.html.haml b/app/views/projects/merge_requests/branch_to.html.haml
new file mode 100644
index 0000000000..67a7a6bcec
--- /dev/null
+++ b/app/views/projects/merge_requests/branch_to.html.haml
@@ -0,0 +1 @@
+= commit_to_html(@commit, @target_project, false)
diff --git a/app/views/projects/merge_requests/branch_to.js.haml b/app/views/projects/merge_requests/branch_to.js.haml
deleted file mode 100644
index 32fe2d535f..0000000000
--- a/app/views/projects/merge_requests/branch_to.js.haml
+++ /dev/null
@@ -1,3 +0,0 @@
-:plain
-  $(".mr_target_commit").html("#{commit_to_html(@commit, @target_project, false)}");
-  $('.js-timeago').timeago()
diff --git a/app/views/projects/merge_requests/update_branches.html.haml b/app/views/projects/merge_requests/update_branches.html.haml
new file mode 100644
index 0000000000..1b93188a10
--- /dev/null
+++ b/app/views/projects/merge_requests/update_branches.html.haml
@@ -0,0 +1,5 @@
+%ul
+  - @target_branches.each do |branch|
+    %li
+      %a{ href: "#", class: "#{("is-active" if "a" == branch)}", data: { id: branch } }
+        = branch
diff --git a/app/views/projects/merge_requests/update_branches.js.haml b/app/views/projects/merge_requests/update_branches.js.haml
deleted file mode 100644
index ca21b3bc0d..0000000000
--- a/app/views/projects/merge_requests/update_branches.js.haml
+++ /dev/null
@@ -1,9 +0,0 @@
-:plain
-  $(".target_branch").html("#{escape_javascript(options_for_select(@target_branches))}");
-
-  $('select.target_branch').select2({
-    width: 'resolve',
-    dropdownAutoWidth: true
-  });
-
-  $(".mr_target_commit").html("");
diff --git a/app/views/projects/merge_requests/widget/_show.html.haml b/app/views/projects/merge_requests/widget/_show.html.haml
index 2be06aebe6..3c68d61c4b 100644
--- a/app/views/projects/merge_requests/widget/_show.html.haml
+++ b/app/views/projects/merge_requests/widget/_show.html.haml
@@ -8,18 +8,22 @@
   = render 'projects/merge_requests/widget/locked'
 
 :javascript
-  var merge_request_widget;
   var opts = {
     merge_check_url: "#{merge_check_namespace_project_merge_request_path(@project.namespace, @project, @merge_request)}",
     check_enable: #{@merge_request.unchecked? ? "true" : "false"},
     ci_status_url: "#{ci_status_namespace_project_merge_request_path(@project.namespace, @project, @merge_request)}",
     gitlab_icon: "#{asset_path 'gitlab_logo.png'}",
     ci_status: "",
-    ci_message: "Build {{status}} for \"{{title}}\"",
+    ci_message: {
+      normal: "Build {{status}} for \"{{title}}\"",
+      preparing: "{{status}} build for \"{{title}}\""
+    },
     ci_enable: #{@project.ci_service ? "true" : "false"},
+    ci_title: {
+      preparing: "{{status}} build",
+      normal: "Build {{status}}"
+    },
     builds_path: "#{builds_namespace_project_merge_request_path(@project.namespace, @project, @merge_request)}"
   };
 
-  if(typeof merge_request_widget === 'undefined') {
-    merge_request_widget = new MergeRequestWidget(opts);
-  }
+  merge_request_widget = new MergeRequestWidget(opts);
diff --git a/app/views/projects/milestones/_form.html.haml b/app/views/projects/milestones/_form.html.haml
index 23f2bca7ba..b2dae1c70e 100644
--- a/app/views/projects/milestones/_form.html.haml
+++ b/app/views/projects/milestones/_form.html.haml
@@ -1,9 +1,6 @@
 = form_for [@project.namespace.becomes(Namespace), @project, @milestone], html: {class: 'form-horizontal milestone-form gfm-form js-quick-submit js-requires-input'}  do |f|
-  -if @milestone.errors.any?
-    .alert.alert-danger
-      %ul
-        - @milestone.errors.full_messages.each do |msg|
-          %li= msg
+  = form_errors(@milestone)
+
   .row
     .col-md-6
       .form-group
diff --git a/app/views/projects/new.html.haml b/app/views/projects/new.html.haml
index 2523311213..a4c6094c69 100644
--- a/app/views/projects/new.html.haml
+++ b/app/views/projects/new.html.haml
@@ -19,7 +19,7 @@
             - if current_user.can_select_namespace?
               .input-group-addon
                 = root_url
-              = f.select :namespace_id, namespaces_options(params[:namespace_id] || :current_user, display_path: true), {}, {class: 'select2', tabindex: 1}
+              = f.select :namespace_id, namespaces_options(params[:namespace_id] || :current_user, display_path: true), {}, {class: 'select2 js-select-namespace', tabindex: 1}
               .input-group-addon
                 \/
             - else
diff --git a/app/views/projects/notes/_diff_notes_with_reply.html.haml b/app/views/projects/notes/_diff_notes_with_reply.html.haml
index 11f9859a90..39be072855 100644
--- a/app/views/projects/notes/_diff_notes_with_reply.html.haml
+++ b/app/views/projects/notes/_diff_notes_with_reply.html.haml
@@ -3,9 +3,6 @@
 - if !defined?(line) || line == note.diff_line
   %tr.notes_holder
     %td.notes_line{ colspan: 2 }
-      %span.discussion-notes-count
-        %i.fa.fa-comment
-        = notes.count
     %td.notes_content
       %ul.notes{ data: { discussion_id: note.discussion_id } }
         = render notes
diff --git a/app/views/projects/notes/_diff_notes_with_reply_parallel.html.haml b/app/views/projects/notes/_diff_notes_with_reply_parallel.html.haml
index bb761ed2f9..f8aa5e2fa7 100644
--- a/app/views/projects/notes/_diff_notes_with_reply_parallel.html.haml
+++ b/app/views/projects/notes/_diff_notes_with_reply_parallel.html.haml
@@ -4,9 +4,6 @@
 %tr.notes_holder
   - if note1
     %td.notes_line.old
-      %span.btn.disabled
-        %i.fa.fa-comment
-        = notes_left.count
     %td.notes_content.parallel.old
       %ul.notes{ data: { discussion_id: note1.discussion_id } }
         = render notes_left
@@ -19,9 +16,6 @@
 
   - if note2
     %td.notes_line.new
-      %span.btn.disabled
-        %i.fa.fa-comment
-        = notes_right.count
     %td.notes_content.parallel.new
       %ul.notes{ data: { discussion_id: note2.discussion_id } }
         = render notes_right
diff --git a/app/views/projects/notes/_note.html.haml b/app/views/projects/notes/_note.html.haml
index 34fe1743f4..5c42423541 100644
--- a/app/views/projects/notes/_note.html.haml
+++ b/app/views/projects/notes/_note.html.haml
@@ -17,7 +17,7 @@
               %span.note-role
                 = access
             = link_to '#', title: 'Edit comment', class: 'note-action-button js-note-edit' do
-              = icon('pencil-square-o')
+              = icon('pencil')
             = link_to namespace_project_note_path(note.project.namespace, note.project, note), title: 'Remove comment', method: :delete, data: { confirm: 'Are you sure you want to remove this comment?' }, remote: true, class: 'note-action-button js-note-delete danger' do
               = icon('trash-o')
       .note-body{class: note_editable?(note) ? 'js-task-list-container' : ''}
diff --git a/app/views/projects/protected_branches/index.html.haml b/app/views/projects/protected_branches/index.html.haml
index cfd7e1534c..653b02da4d 100644
--- a/app/views/projects/protected_branches/index.html.haml
+++ b/app/views/projects/protected_branches/index.html.haml
@@ -13,11 +13,7 @@
 
 - if can? current_user, :admin_project, @project
   = form_for [@project.namespace.becomes(Namespace), @project, @protected_branch], html: { class: 'form-horizontal' } do |f|
-    -if @protected_branch.errors.any?
-      .alert.alert-danger
-        %ul
-          - @protected_branch.errors.full_messages.each do |msg|
-            %li= msg
+    = form_errors(@protected_branch)
 
     .form-group
       = f.label :name, "Branch", class: 'control-label'
diff --git a/app/views/projects/variables/show.html.haml b/app/views/projects/variables/show.html.haml
index efe1e6f24c..ca284b84d3 100644
--- a/app/views/projects/variables/show.html.haml
+++ b/app/views/projects/variables/show.html.haml
@@ -13,13 +13,7 @@
 
 
 = nested_form_for @project, url: url_for(controller: 'projects/variables', action: 'update'), html: { class: 'form-horizontal' }  do |f|
-  - if @project.errors.any?
-    #error_explanation
-      %p.lead= "#{pluralize(@project.errors.count, "error")} prohibited this project from being saved:"
-      .alert.alert-error
-        %ul
-          - @project.errors.full_messages.each do |msg|
-            %li= msg
+  = form_errors(@project)
 
   = f.fields_for :variables do |variable_form|
     .form-group
diff --git a/app/views/projects/wikis/_form.html.haml b/app/views/projects/wikis/_form.html.haml
index f0d1932e23..812876e283 100644
--- a/app/views/projects/wikis/_form.html.haml
+++ b/app/views/projects/wikis/_form.html.haml
@@ -1,9 +1,5 @@
 = form_for [@project.namespace.becomes(Namespace), @project, @page], method: @page.persisted? ? :put : :post, html: { class: 'form-horizontal wiki-form gfm-form prepend-top-default js-quick-submit' } do |f|
-  -if @page.errors.any?
-    #error_explanation
-      .alert.alert-danger
-        - @page.errors.full_messages.each do |msg|
-          %p= msg
+  = form_errors(@page)
 
   = f.hidden_field :title, value: @page.title
   .form-group
diff --git a/app/views/shared/_commit_message_container.html.haml b/app/views/shared/_commit_message_container.html.haml
index 7afbaeddee..0a38327baa 100644
--- a/app/views/shared/_commit_message_container.html.haml
+++ b/app/views/shared/_commit_message_container.html.haml
@@ -6,7 +6,7 @@
     .commit-message-container
       .max-width-marker
       = text_area_tag 'commit_message',
-          (params[:commit_message] || local_assigns[:text]),
+          (params[:commit_message] || local_assigns[:text] || local_assigns[:placeholder]),
           class: 'form-control js-commit-message', placeholder: local_assigns[:placeholder],
           required: true, rows: (local_assigns[:rows] || 3),
           id: "commit_message-#{nonce}"
diff --git a/app/views/shared/_label_row.html.haml b/app/views/shared/_label_row.html.haml
index 4b47b0291b..b38c5e18ef 100644
--- a/app/views/shared/_label_row.html.haml
+++ b/app/views/shared/_label_row.html.haml
@@ -1,4 +1,5 @@
 %span.label-row
-  = link_to_label(label, tooltip: false)
+  %span.label-name
+    = link_to_label(label, tooltip: false)
   %span.prepend-left-10
     = markdown(label.description, pipeline: :single_line)
diff --git a/app/views/shared/_service_settings.html.haml b/app/views/shared/_service_settings.html.haml
index 5a60ff5a5d..fc935166bf 100644
--- a/app/views/shared/_service_settings.html.haml
+++ b/app/views/shared/_service_settings.html.haml
@@ -1,9 +1,4 @@
-- if @service.errors.any?
-  #error_explanation
-    .alert.alert-danger
-      %ul
-        - @service.errors.full_messages.each do |msg|
-          %li= msg
+= form_errors(@service)
 
 - if @service.help.present?
   .well
diff --git a/app/views/shared/issuable/_form.html.haml b/app/views/shared/issuable/_form.html.haml
index e2a9e5bfb9..757a3812de 100644
--- a/app/views/shared/issuable/_form.html.haml
+++ b/app/views/shared/issuable/_form.html.haml
@@ -1,10 +1,5 @@
-- if issuable.errors.any?
-  .row
-    .col-sm-offset-2.col-sm-10
-      .alert.alert-danger
-        - issuable.errors.full_messages.each do |msg|
-          %span= msg
-          %br
+= form_errors(issuable)
+
 .form-group
   = f.label :title, class: 'control-label'
   .col-sm-10
@@ -53,10 +48,11 @@
     .issue-assignee
       = f.label :assignee_id, "Assignee", class: 'control-label'
       .col-sm-10
-        = users_select_tag("#{issuable.class.model_name.param_key}[assignee_id]",
-            placeholder: 'Select assignee', class: 'custom-form-control', null_user: true,
-            selected: issuable.assignee_id, project: @target_project || @project,
-            first_user: true, current_user: true, include_blank: true)
+        .issuable-form-select-holder
+          = users_select_tag("#{issuable.class.model_name.param_key}[assignee_id]",
+              placeholder: 'Select assignee', class: 'custom-form-control', null_user: true,
+              selected: issuable.assignee_id, project: @target_project || @project,
+              first_user: true, current_user: true, include_blank: true)
         &nbsp;
         = link_to 'Assign to me', '#', class: 'btn assign-to-me-link'
   .form-group
@@ -64,8 +60,9 @@
       = f.label :milestone_id, "Milestone", class: 'control-label'
       .col-sm-10
         - if milestone_options(issuable).present?
-          = f.select(:milestone_id, milestone_options(issuable),
-            { include_blank: true }, { class: 'select2', data: { placeholder: 'Select milestone' } })
+          .issuable-form-select-holder
+            = f.select(:milestone_id, milestone_options(issuable),
+              { include_blank: true }, { class: 'select2', data: { placeholder: 'Select milestone' } })
         - else
           .prepend-top-10
           %span.light No open milestones available.
diff --git a/app/views/shared/issuable/_sidebar.html.haml b/app/views/shared/issuable/_sidebar.html.haml
index 47e544acf5..94affa4b59 100644
--- a/app/views/shared/issuable/_sidebar.html.haml
+++ b/app/views/shared/issuable/_sidebar.html.haml
@@ -1,5 +1,6 @@
 %aside.right-sidebar{ class: sidebar_gutter_collapsed_class }
   .issuable-sidebar
+    - can_edit_issuable = can?(current_user, :"admin_#{issuable.to_ability_name}", @project)
     .block.issuable-sidebar-header
       %span.issuable-count.hide-collapsed.pull-left
         = issuable.iid
@@ -29,7 +30,7 @@
         .title.hide-collapsed
           Assignee
           = icon('spinner spin', class: 'block-loading')
-          - if can?(current_user, :"admin_#{issuable.to_ability_name}", @project)
+          - if can_edit_issuable
             = link_to 'Edit', '#', class: 'edit-link pull-right'
         .value.bold.hide-collapsed
           - if issuable.assignee
@@ -41,9 +42,10 @@
                 = issuable.assignee.to_reference
           - else
             %span.assign-yourself
-              No assignee -
-              %a.js-assign-yourself{ href: '#' }
-                assign yourself
+              No assignee
+              - if can_edit_issuable
+                %a.js-assign-yourself{ href: '#' }
+                  \- assign yourself
 
         .selectbox.hide-collapsed
           = f.hidden_field 'assignee_id', value: issuable.assignee_id, id: 'issue_assignee_id'
@@ -60,7 +62,7 @@
         .title.hide-collapsed
           Milestone
           = icon('spinner spin', class: 'block-loading')
-          - if can?(current_user, :"admin_#{issuable.to_ability_name}", @project)
+          - if can_edit_issuable
             = link_to 'Edit', '#', class: 'edit-link pull-right'
         .value.bold.hide-collapsed
           - if issuable.milestone
@@ -82,7 +84,7 @@
           .title.hide-collapsed
             Labels
             = icon('spinner spin', class: 'block-loading')
-            - if can?(current_user, :"admin_#{issuable.to_ability_name}", @project)
+            - if can_edit_issuable
               = link_to 'Edit', '#', class: 'edit-link pull-right'
           .value.bold.issuable-show-labels.hide-collapsed{ class: ("has-labels" if issuable.labels.any?) }
             - if issuable.labels.any?
diff --git a/app/views/shared/snippets/_form.html.haml b/app/views/shared/snippets/_form.html.haml
index 1041eccd1d..47ec09f62c 100644
--- a/app/views/shared/snippets/_form.html.haml
+++ b/app/views/shared/snippets/_form.html.haml
@@ -1,10 +1,6 @@
 .snippet-form-holder
   = form_for @snippet, url: url, html: { class: "form-horizontal snippet-form js-requires-input" } do |f|
-    - if @snippet.errors.any?
-      .alert.alert-danger
-        %ul
-          - @snippet.errors.full_messages.each do |msg|
-            %li= msg
+    = form_errors(@snippet)
 
     .form-group
       = f.label :title, class: 'control-label'
diff --git a/app/views/users/calendar.html.haml b/app/views/users/calendar.html.haml
index 7f29918dba..1de71f37d1 100644
--- a/app/views/users/calendar.html.haml
+++ b/app/views/users/calendar.html.haml
@@ -7,4 +7,4 @@
       '#{user_calendar_activities_path}'
     );
 
-.calendar-hint Summary of issues, merge requests and push events
+.calendar-hint Summary of issues, merge requests, and push events
diff --git a/app/views/votes/_votes_block.html.haml b/app/views/votes/_votes_block.html.haml
index 8ffcdc4a32..dc249155b9 100644
--- a/app/views/votes/_votes_block.html.haml
+++ b/app/views/votes/_votes_block.html.haml
@@ -1,7 +1,7 @@
 .awards.votes-block
   - awards_sort(votable.notes.awards.grouped_awards).each do |emoji, notes|
-    %button.btn.award-control.js-emoji-btn.has-tooltip{class: (note_active_class(notes, current_user)), title: emoji_author_list(notes, current_user), data: {placement: "top"}}
-      = emoji_icon(emoji)
+    %button.btn.award-control.js-emoji-btn.has-tooltip{class: (note_active_class(notes, current_user)), data: {placement: "top", original_title: emoji_author_list(notes, current_user)}}
+      = emoji_icon(emoji, sprite: false)
       %span.award-control-text.js-counter
         = notes.count
 
diff --git a/config/application.rb b/config/application.rb
index 5a0ac70aa2..2e2ed48db0 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -4,11 +4,9 @@ require 'rails/all'
 require 'devise'
 I18n.config.enforce_available_locales = false
 Bundler.require(:default, Rails.env)
-require_relative '../lib/gitlab/redis_config'
+require_relative '../lib/gitlab/redis'
 
 module Gitlab
-  REDIS_CACHE_NAMESPACE = 'cache:gitlab'
-
   class Application < Rails::Application
     # Settings in config/environments/* take precedence over those specified here.
     # Application configuration should go into files in config/initializers
@@ -69,8 +67,8 @@ module Gitlab
       end
     end
 
-    redis_config_hash = Gitlab::RedisConfig.redis_store_options
-    redis_config_hash[:namespace] = REDIS_CACHE_NAMESPACE
+    redis_config_hash = Gitlab::Redis.redis_store_options
+    redis_config_hash[:namespace] = Gitlab::Redis::CACHE_NAMESPACE
     redis_config_hash[:expires_in] = 2.weeks # Cache should not grow forever
     config.cache_store = :redis_store, redis_config_hash
 
diff --git a/config/environments/production.rb b/config/environments/production.rb
index 909526605a..a9d8ac4b6d 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -21,6 +21,9 @@ Rails.application.configure do
   # Generate digests for assets URLs
   config.assets.digest = true
 
+  # Enable compression of compiled assets using gzip.
+  config.assets.compress = true
+
   # Defaults to nil and saved in location specified by config.assets.prefix
   # config.assets.manifest = YOUR_PATH
 
diff --git a/config/environments/test.rb b/config/environments/test.rb
index f96ac6f975..a703c0934f 100644
--- a/config/environments/test.rb
+++ b/config/environments/test.rb
@@ -8,6 +8,7 @@ Rails.application.configure do
   config.cache_classes = false
 
   # Configure static asset server for tests with Cache-Control for performance
+  config.assets.digest = false
   config.serve_static_files = true
   config.static_cache_control = "public, max-age=3600"
 
diff --git a/config/gitlab.yml.example b/config/gitlab.yml.example
index fb1c3476f6..35c7c425a5 100644
--- a/config/gitlab.yml.example
+++ b/config/gitlab.yml.example
@@ -80,7 +80,7 @@ production: &base
     # This happens when the commit is pushed or merged into the default branch of a project.
     # When not specified the default issue_closing_pattern as specified below will be used.
     # Tip: you can test your closing pattern at http://rubular.com.
-    # issue_closing_pattern: '((?:[Cc]los(?:e[sd]?|ing)|[Ff]ix(?:e[sd]|ing)?) +(?:(?:issues? +)?%{issue_ref}(?:(?:, *| +and +)?))+)'
+    # issue_closing_pattern: '((?:[Cc]los(?:e[sd]?|ing)|[Ff]ix(?:e[sd]|ing)?|[Rr]esolv(?:e[sd]?|ing))(:?) +(?:(?:issues? +)?%{issue_ref}(?:(?:, *| +and +)?)|([A-Z][A-Z0-9_]+-\d+))+)'
 
     ## Default project features settings
     default_projects_features:
@@ -345,6 +345,8 @@ production: &base
       #
       # - { name: 'saml',
       #     label: 'Our SAML Provider',
+      #     groups_attribute: 'Groups',
+      #     external_groups: ['Contractors', 'Freelancers'],
       #     args: {
       #             assertion_consumer_service_url: 'https://gitlab.example.com/users/auth/saml/callback',
       #             idp_cert_fingerprint: '43:51:43:a1:b5:fc:8b:b7:0a:3a:a9:b1:0f:66:73:a8',
@@ -352,6 +354,7 @@ production: &base
       #             issuer: 'https://gitlab.example.com',
       #             name_identifier_format: 'urn:oasis:names:tc:SAML:2.0:nameid-format:transient'
       #           } }
+      #
       # - { name: 'crowd',
       #     args: {
       #       crowd_server_url: 'CROWD SERVER URL',
diff --git a/config/initializers/1_settings.rb b/config/initializers/1_settings.rb
index 2b98901527..72c4d8d61c 100644
--- a/config/initializers/1_settings.rb
+++ b/config/initializers/1_settings.rb
@@ -176,7 +176,7 @@ Settings.gitlab['signup_enabled'] ||= true if Settings.gitlab['signup_enabled'].
 Settings.gitlab['signin_enabled'] ||= true if Settings.gitlab['signin_enabled'].nil?
 Settings.gitlab['restricted_visibility_levels'] = Settings.send(:verify_constant_array, Gitlab::VisibilityLevel, Settings.gitlab['restricted_visibility_levels'], [])
 Settings.gitlab['username_changing_enabled'] = true if Settings.gitlab['username_changing_enabled'].nil?
-Settings.gitlab['issue_closing_pattern'] = '((?:[Cc]los(?:e[sd]?|ing)|[Ff]ix(?:e[sd]|ing)?|[Rr]esolv(?:e[sd]?|ing)) +(?:(?:issues? +)?%{issue_ref}(?:(?:, *| +and +)?)|([A-Z][A-Z0-9_]+-\d+))+)' if Settings.gitlab['issue_closing_pattern'].nil?
+Settings.gitlab['issue_closing_pattern'] = '((?:[Cc]los(?:e[sd]?|ing)|[Ff]ix(?:e[sd]|ing)?|[Rr]esolv(?:e[sd]?|ing))(:?) +(?:(?:issues? +)?%{issue_ref}(?:(?:, *| +and +)?)|([A-Z][A-Z0-9_]+-\d+))+)' if Settings.gitlab['issue_closing_pattern'].nil?
 Settings.gitlab['default_projects_features'] ||= {}
 Settings.gitlab['webhook_timeout'] ||= 10
 Settings.gitlab['max_attachment_size'] ||= 10
diff --git a/config/initializers/metrics.rb b/config/initializers/metrics.rb
index 3e1deb8d30..22fe51a453 100644
--- a/config/initializers/metrics.rb
+++ b/config/initializers/metrics.rb
@@ -1,4 +1,5 @@
 if Gitlab::Metrics.enabled?
+  require 'pathname'
   require 'influxdb'
   require 'connection_pool'
   require 'method_source'
@@ -7,6 +8,7 @@ if Gitlab::Metrics.enabled?
   # ActiveSupport.
   require 'gitlab/metrics/subscribers/action_view'
   require 'gitlab/metrics/subscribers/active_record'
+  require 'gitlab/metrics/subscribers/rails_cache'
 
   Gitlab::Application.configure do |config|
     config.middleware.use(Gitlab::Metrics::RackMiddleware)
@@ -74,6 +76,37 @@ if Gitlab::Metrics.enabled?
       config.instrument_methods(const)
       config.instrument_instance_methods(const)
     end
+
+    # Instruments all Banzai filters
+    Dir[Rails.root.join('lib', 'banzai', 'filter', '*.rb')].each do |file|
+      klass = File.basename(file, File.extname(file)).camelize
+      const = Banzai::Filter.const_get(klass)
+
+      config.instrument_methods(const)
+      config.instrument_instance_methods(const)
+    end
+
+    config.instrument_methods(Banzai::Renderer)
+    config.instrument_methods(Banzai::Querying)
+
+    [Issuable, Mentionable, Participable].each do |klass|
+      config.instrument_instance_methods(klass)
+      config.instrument_instance_methods(klass::ClassMethods)
+    end
+
+    config.instrument_methods(Gitlab::ReferenceExtractor)
+    config.instrument_instance_methods(Gitlab::ReferenceExtractor)
+
+    # Instrument all service classes
+    services = Rails.root.join('app', 'services')
+
+    Dir[services.join('**', '*.rb')].each do |file_path|
+      path = Pathname.new(file_path).relative_path_from(services)
+      const = path.to_s.sub('.rb', '').camelize.constantize
+
+      config.instrument_methods(const)
+      config.instrument_instance_methods(const)
+    end
   end
 
   GC::Profiler.enable
diff --git a/config/initializers/session_store.rb b/config/initializers/session_store.rb
index 3da5d46be9..7028525587 100644
--- a/config/initializers/session_store.rb
+++ b/config/initializers/session_store.rb
@@ -13,7 +13,7 @@ end
 if Rails.env.test?
   Gitlab::Application.config.session_store :cookie_store, key: "_gitlab_session"
 else
-  redis_config = Gitlab::RedisConfig.redis_store_options
+  redis_config = Gitlab::Redis.redis_store_options
   redis_config[:namespace] = 'session:gitlab'
   
   Gitlab::Application.config.session_store(
diff --git a/config/initializers/sidekiq.rb b/config/initializers/sidekiq.rb
index cc83137745..9182d92980 100644
--- a/config/initializers/sidekiq.rb
+++ b/config/initializers/sidekiq.rb
@@ -2,7 +2,7 @@ SIDEKIQ_REDIS_NAMESPACE = 'resque:gitlab'
 
 Sidekiq.configure_server do |config|
   config.redis = {
-    url: Gitlab::RedisConfig.url,
+    url: Gitlab::Redis.url,
     namespace: SIDEKIQ_REDIS_NAMESPACE
   }
 
@@ -29,7 +29,7 @@ end
 
 Sidekiq.configure_client do |config|
   config.redis = {
-    url: Gitlab::RedisConfig.url,
+    url: Gitlab::Redis.url,
     namespace: SIDEKIQ_REDIS_NAMESPACE
   }
 end
diff --git a/config/mail_room.yml b/config/mail_room.yml
index 60257329f3..761a32adb9 100644
--- a/config/mail_room.yml
+++ b/config/mail_room.yml
@@ -2,7 +2,7 @@
 <%
 require "yaml"
 require "json"
-require_relative "lib/gitlab/redis_config"
+require_relative "lib/gitlab/redis"
 
 rails_env = ENV["RAILS_ENV"] || ENV["RACK_ENV"] || "development"
 
@@ -18,7 +18,7 @@ if File.exists?(config_file)
   config['mailbox']    = "inbox"  if config['mailbox'].nil?
 
   if config['enabled'] && config['address']
-    redis_url = Gitlab::RedisConfig.new(rails_env).url
+    redis_url = Gitlab::Redis.new(rails_env).url
     %>
     -
       :host: <%= config['host'].to_json %>
diff --git a/config/routes.rb b/config/routes.rb
index 6bf22fb445..842fbb9984 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -575,6 +575,7 @@ Rails.application.routes.draw do
           # Order matters to give priority to these matches
           get '/wikis/git_access', to: 'wikis#git_access'
           get '/wikis/pages', to: 'wikis#pages', as: 'wiki_pages'
+          post '/wikis/markdown_preview', to:'wikis#markdown_preview'
           post '/wikis', to: 'wikis#create'
 
           get '/wikis/*id/history', to: 'wikis#history', as: 'wiki_history', constraints: WIKI_SLUG_ID
@@ -749,10 +750,11 @@ Rails.application.routes.draw do
         end
 
         resources :runner_projects, only: [:create, :destroy]
-        resources :badges, only: [], path: 'badges/*ref',
-                           constraints: { ref: Gitlab::Regex.git_reference_regex } do
+        resources :badges, only: [:index] do
           collection do
-            get :build, constraints: { format: /svg/ }
+            scope '*ref', constraints: { ref: Gitlab::Regex.git_reference_regex } do
+              get :build, constraints: { format: /svg/ }
+            end
           end
         end
       end
diff --git a/db/fixtures/development/07_milestones.rb b/db/fixtures/development/07_milestones.rb
index e028ac82ba..540e4e6825 100644
--- a/db/fixtures/development/07_milestones.rb
+++ b/db/fixtures/development/07_milestones.rb
@@ -4,7 +4,7 @@ Gitlab::Seeder.quiet do
       milestone_params = {
         title: "v#{i}.0",
         description: FFaker::Lorem.sentence,
-        state: ['opened', 'closed'].sample,
+        state: [:active, :closed].sample,
       }
 
       milestone = Milestones::CreateService.new(
diff --git a/db/migrate/20130315124931_user_color_scheme.rb b/db/migrate/20130315124931_user_color_scheme.rb
index fe139e32ea..56c9a31ee3 100644
--- a/db/migrate/20130315124931_user_color_scheme.rb
+++ b/db/migrate/20130315124931_user_color_scheme.rb
@@ -1,7 +1,9 @@
 class UserColorScheme < ActiveRecord::Migration
+  include Gitlab::Database
+
   def up
     add_column :users, :color_scheme_id, :integer, null: false, default: 1
-    User.where(dark_scheme: true).update_all(color_scheme_id: 2)
+    execute("UPDATE users SET color_scheme_id = 2 WHERE dark_scheme = #{true_value}")
     remove_column :users, :dark_scheme
   end
 
diff --git a/db/migrate/20130403003950_add_last_activity_column_into_project.rb b/db/migrate/20130403003950_add_last_activity_column_into_project.rb
index 2a036bd999..85e31608d7 100644
--- a/db/migrate/20130403003950_add_last_activity_column_into_project.rb
+++ b/db/migrate/20130403003950_add_last_activity_column_into_project.rb
@@ -3,14 +3,16 @@ class AddLastActivityColumnIntoProject < ActiveRecord::Migration
     add_column :projects, :last_activity_at, :datetime
     add_index :projects, :last_activity_at
 
-    Project.find_each do |project|
-      last_activity_date = if project.last_activity
-                             project.last_activity.created_at
-                           else
-                             project.updated_at
-                           end
+    select_all('SELECT id, updated_at FROM projects').each do |project|
+      project_id = project['id']
+      update_date = project['updated_at']
+      event = select_one("SELECT created_at FROM events WHERE project_id = #{project_id} ORDER BY created_at DESC LIMIT 1")
 
-      project.update_attribute(:last_activity_at, last_activity_date)
+      if event && event['created_at']
+        update_date = event['created_at']
+      end
+
+      execute("UPDATE projects SET last_activity_at = '#{update_date}' WHERE id = #{project_id}")
     end
   end
 
diff --git a/db/migrate/20131112220935_add_visibility_level_to_projects.rb b/db/migrate/20131112220935_add_visibility_level_to_projects.rb
index cf1e9f912a..89421cbeda 100644
--- a/db/migrate/20131112220935_add_visibility_level_to_projects.rb
+++ b/db/migrate/20131112220935_add_visibility_level_to_projects.rb
@@ -1,13 +1,15 @@
 class AddVisibilityLevelToProjects < ActiveRecord::Migration
+  include Gitlab::Database
+
   def self.up
     add_column :projects, :visibility_level, :integer, :default => 0, :null => false
-    Project.where(public: true).update_all(visibility_level: Gitlab::VisibilityLevel::PUBLIC)
+    execute("UPDATE projects SET visibility_level = #{Gitlab::VisibilityLevel::PUBLIC} WHERE public = #{true_value}")
     remove_column :projects, :public
   end
 
   def self.down
     add_column :projects, :public, :boolean, :default => false, :null => false
-    Project.where(visibility_level: Gitlab::VisibilityLevel::PUBLIC).update_all(public: true)
+    execute("UPDATE projects SET public = #{true_value} WHERE visibility_level = #{Gitlab::VisibilityLevel::PUBLIC}")
     remove_column :projects, :visibility_level
   end
 end
diff --git a/db/migrate/20140313092127_migrate_already_imported_projects.rb b/db/migrate/20140313092127_migrate_already_imported_projects.rb
index f4392c0f05..0a9f73a575 100644
--- a/db/migrate/20140313092127_migrate_already_imported_projects.rb
+++ b/db/migrate/20140313092127_migrate_already_imported_projects.rb
@@ -1,12 +1,14 @@
 class MigrateAlreadyImportedProjects < ActiveRecord::Migration
+  include Gitlab::Database
+
   def up
-    Project.where(imported: true).update_all(import_status: "finished")
-    Project.where(imported: false).update_all(import_status: "none")
+    execute("UPDATE projects SET import_status = 'finished' WHERE imported = #{true_value}")
+    execute("UPDATE projects SET import_status = 'none' WHERE imported = #{false_value}")
     remove_column :projects, :imported
   end
 
   def down
     add_column :projects, :imported, :boolean, default: false
-    Project.where(import_status: 'finished').update_all(imported: true)
+    execute("UPDATE projects SET imported = #{true_value} WHERE import_status = 'finished'")
   end
 end
diff --git a/db/migrate/20141007100818_add_visibility_level_to_snippet.rb b/db/migrate/20141007100818_add_visibility_level_to_snippet.rb
index 7f125acb5d..93826185e8 100644
--- a/db/migrate/20141007100818_add_visibility_level_to_snippet.rb
+++ b/db/migrate/20141007100818_add_visibility_level_to_snippet.rb
@@ -1,9 +1,11 @@
 class AddVisibilityLevelToSnippet < ActiveRecord::Migration
+  include Gitlab::Database
+
   def up
     add_column :snippets, :visibility_level, :integer, :default => 0, :null => false
 
-    Snippet.where(private: true).update_all(visibility_level: Gitlab::VisibilityLevel::PRIVATE)
-    Snippet.where(private: false).update_all(visibility_level: Gitlab::VisibilityLevel::INTERNAL)
+    execute("UPDATE snippets SET visibility_level = #{Gitlab::VisibilityLevel::PRIVATE} WHERE private = #{true_value}")
+    execute("UPDATE snippets SET visibility_level = #{Gitlab::VisibilityLevel::INTERNAL} WHERE private = #{false_value}")
 
     add_index :snippets, :visibility_level
 
@@ -12,10 +14,10 @@ class AddVisibilityLevelToSnippet < ActiveRecord::Migration
 
   def down
     add_column :snippets, :private, :boolean, :default => false, :null => false
-    
-    Snippet.where(visibility_level: Gitlab::VisibilityLevel::INTERNAL).update_all(private: false)
-    Snippet.where(visibility_level: Gitlab::VisibilityLevel::PRIVATE).update_all(private: true)
-    
+
+    execute("UPDATE snippets SET private = #{false_value} WHERE visibility_level = #{Gitlab::VisibilityLevel::INTERNAL}")
+    execute("UPDATE snippets SET private = #{true_value} WHERE visibility_level = #{Gitlab::VisibilityLevel::PRIVATE}")
+
     remove_column :snippets, :visibility_level
   end
 end
diff --git a/db/schema.rb b/db/schema.rb
index e63e22ce86..ec235c1913 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20160331133914) do
+ActiveRecord::Schema.define(version: 20160331223143) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -44,7 +44,6 @@ ActiveRecord::Schema.define(version: 20160331133914) do
     t.datetime "updated_at"
     t.string   "home_page_url"
     t.integer  "default_branch_protection",         default: 2
-    t.boolean  "twitter_sharing_enabled",           default: true
     t.text     "restricted_visibility_levels"
     t.boolean  "version_check_enabled",             default: true
     t.integer  "max_attachment_size",               default: 10,          null: false
diff --git a/doc/api/issues.md b/doc/api/issues.md
index cc6355d34e..1c635a6cdc 100644
--- a/doc/api/issues.md
+++ b/doc/api/issues.md
@@ -76,8 +76,9 @@ Example response:
       "title" : "Consequatur vero maxime deserunt laboriosam est voluptas dolorem.",
       "created_at" : "2016-01-04T15:31:51.081Z",
       "iid" : 6,
-      "labels" : []
-   },
+      "labels" : [],
+      "subscribed" : false
+   }
 ]
 ```
 
@@ -152,7 +153,8 @@ Example response:
       "id" : 41,
       "title" : "Ut commodi ullam eos dolores perferendis nihil sunt.",
       "updated_at" : "2016-01-04T15:31:46.176Z",
-      "created_at" : "2016-01-04T15:31:46.176Z"
+      "created_at" : "2016-01-04T15:31:46.176Z",
+      "subscribed" : false
    }
 ]
 ```
@@ -213,7 +215,8 @@ Example response:
    "id" : 41,
    "title" : "Ut commodi ullam eos dolores perferendis nihil sunt.",
    "updated_at" : "2016-01-04T15:31:46.176Z",
-   "created_at" : "2016-01-04T15:31:46.176Z"
+   "created_at" : "2016-01-04T15:31:46.176Z",
+   "subscribed": false
 }
 ```
 
@@ -267,7 +270,8 @@ Example response:
    },
    "description" : null,
    "updated_at" : "2016-01-07T12:44:33.959Z",
-   "milestone" : null
+   "milestone" : null,
+   "subscribed" : true
 }
 ```
 
@@ -323,7 +327,8 @@ Example response:
    ],
    "id" : 85,
    "assignee" : null,
-   "milestone" : null
+   "milestone" : null,
+   "subscribed" : true
 }
 ```
 
diff --git a/doc/api/labels.md b/doc/api/labels.md
index 544e898b6a..3730c07c5a 100644
--- a/doc/api/labels.md
+++ b/doc/api/labels.md
@@ -23,42 +23,42 @@ Example response:
    {
       "name" : "bug",
       "color" : "#d9534f",
-      "description": "Bug reported by user"
+      "description": "Bug reported by user",
+      "open_issues_count": 1,
+      "closed_issues_count": 0,
+      "open_merge_requests_count": 1
    },
    {
       "color" : "#d9534f",
       "name" : "confirmed",
-      "description": "Confirmed issue"
+      "description": "Confirmed issue",
+      "open_issues_count": 2,
+      "closed_issues_count": 5,
+      "open_merge_requests_count": 0
    },
    {
       "name" : "critical",
       "color" : "#d9534f",
-      "description": "Criticalissue. Need fix ASAP"
-   },
-   {
-      "color" : "#428bca",
-      "name" : "discussion",
-      "description": "Issue that needs further discussion"
+      "description": "Criticalissue. Need fix ASAP",
+      "open_issues_count": 1,
+      "closed_issues_count": 3,
+      "open_merge_requests_count": 1
    },
    {
       "name" : "documentation",
       "color" : "#f0ad4e",
-      "description": "Issue about documentation"
+      "description": "Issue about documentation",
+      "open_issues_count": 1,
+      "closed_issues_count": 0,
+      "open_merge_requests_count": 2
    },
    {
       "color" : "#5cb85c",
       "name" : "enhancement",
-      "description": "Enhancement proposal"
-   },
-   {
-      "color" : "#428bca",
-      "name" : "suggestion",
-      "description": "Suggestion"
-   },
-   {
-      "color" : "#f0ad4e",
-      "name" : "support",
-      "description": "Support issue"
+      "description": "Enhancement proposal",
+      "open_issues_count": 1,
+      "closed_issues_count": 0,
+      "open_merge_requests_count": 1
    }
 ]
 ```
diff --git a/doc/api/merge_requests.md b/doc/api/merge_requests.md
index b20a6300b7..20db73ea6c 100644
--- a/doc/api/merge_requests.md
+++ b/doc/api/merge_requests.md
@@ -66,7 +66,8 @@ Parameters:
       "due_date": null
     },
     "merge_when_build_succeeds": true,
-    "merge_status": "can_be_merged"
+    "merge_status": "can_be_merged",
+    "subscribed" : false
   }
 ]
 ```
@@ -128,7 +129,8 @@ Parameters:
     "due_date": null
   },
   "merge_when_build_succeeds": true,
-  "merge_status": "can_be_merged"
+  "merge_status": "can_be_merged",
+  "subscribed" : true
 }
 ```
 
@@ -227,6 +229,7 @@ Parameters:
   },
   "merge_when_build_succeeds": true,
   "merge_status": "can_be_merged",
+  "subscribed" : true,
   "changes": [
     {
     "old_path": "VERSION",
@@ -304,7 +307,8 @@ Parameters:
     "due_date": null
   },
   "merge_when_build_succeeds": true,
-  "merge_status": "can_be_merged"
+  "merge_status": "can_be_merged",
+  "subscribed" : true
 }
 ```
 
@@ -373,7 +377,8 @@ Parameters:
     "due_date": null
   },
   "merge_when_build_succeeds": true,
-  "merge_status": "can_be_merged"
+  "merge_status": "can_be_merged",
+  "subscribed" : true
 }
 ```
 
@@ -466,7 +471,8 @@ Parameters:
     "due_date": null
   },
   "merge_when_build_succeeds": true,
-  "merge_status": "can_be_merged"
+  "merge_status": "can_be_merged",
+  "subscribed" : true
 }
 ```
 
@@ -530,7 +536,8 @@ Parameters:
     "due_date": null
   },
   "merge_when_build_succeeds": true,
-  "merge_status": "can_be_merged"
+  "merge_status": "can_be_merged",
+  "subscribed" : true
 }
 ```
 
diff --git a/doc/api/milestones.md b/doc/api/milestones.md
index a682872826..e4202025f8 100644
--- a/doc/api/milestones.md
+++ b/doc/api/milestones.md
@@ -7,8 +7,24 @@ Returns a list of project milestones.
 ```
 GET /projects/:id/milestones
 GET /projects/:id/milestones?iid=42
+GET /projects/:id/milestones?state=active
+GET /projects/:id/milestones?state=closed
 ```
 
+Parameters:
+
+| Attribute | Type | Required | Description |
+| --------- | ---- | -------- | ----------- |
+| `id` | integer | yes | The ID of a project |
+| `iid` | integer | optional | Return only the milestone having the given `iid` |
+| `state` | string | optional | Return  only `active` or `closed` milestones` |
+
+```bash
+curl -H "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v3/projects/5/milestones
+```
+
+Example Response:
+
 ```json
 [
   {
@@ -25,10 +41,6 @@ GET /projects/:id/milestones?iid=42
 ]
 ```
 
-Parameters:
-
-- `id` (required) - The ID of a project
-- `iid` (optional) - Return the milestone having the given `iid`
 
 ## Get single milestone
 
diff --git a/doc/api/notes.md b/doc/api/notes.md
index d4d63e825a..2e0936f11b 100644
--- a/doc/api/notes.md
+++ b/doc/api/notes.md
@@ -32,6 +32,7 @@ Parameters:
       "created_at": "2013-09-30T13:46:01Z"
     },
     "created_at": "2013-10-02T09:22:45Z",
+    "updated_at": "2013-10-02T10:22:45Z",
     "system": true,
     "upvote": false,
     "downvote": false,
@@ -51,6 +52,7 @@ Parameters:
       "created_at": "2013-09-30T13:46:01Z"
     },
     "created_at": "2013-10-02T09:56:03Z",
+    "updated_at": "2013-10-02T09:56:03Z",
     "system": true,
     "upvote": false,
     "downvote": false,
@@ -103,6 +105,53 @@ Parameters:
 - `note_id` (required) - The ID of a note
 - `body` (required) - The content of a note
 
+### Delete an issue note
+
+Deletes an existing note of an issue. On success, this API method returns 200
+and the deleted note. If the note does not exist, the API returns 404.
+
+```
+DELETE /projects/:id/issues/:issue_id/notes/:note_id
+```
+
+Parameters:
+
+| Attribute | Type | Required | Description |
+| --------- | ---- | -------- | ----------- |
+| `id` | integer | yes | The ID of a project |
+| `issue_id` | integer | yes | The ID of an issue |
+| `note_id` | integer | yes | The ID of a note |
+
+```bash
+curl -X DELETE -H "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v3/projects/5/issues/11/notes/636
+```
+
+Example Response:
+
+```json
+{
+  "id": 636,
+  "body": "This is a good idea.",
+  "attachment": null,
+  "author": {
+    "id": 1,
+    "username": "pipin",
+    "email": "admin@example.com",
+    "name": "Pip",
+    "state": "active",
+    "created_at": "2013-09-30T13:46:01Z",
+    "avatar_url": "http://www.gravatar.com/avatar/5224fd70153710e92fb8bcf79ac29d67?s=80&d=identicon",
+    "web_url": "https://gitlab.example.com/u/pipin"
+  },
+  "created_at": "2016-04-05T22:10:44.164Z",
+  "system": false,
+  "noteable_id": 11,
+  "noteable_type": "Issue",
+  "upvote": false,
+  "downvote": false
+}
+```
+
 ## Snippets
 
 ### List all snippet notes
@@ -180,6 +229,53 @@ Parameters:
 - `note_id` (required) - The ID of a note
 - `body` (required) - The content of a note
 
+### Delete a snippet note
+
+Deletes an existing note of a snippet. On success, this API method returns 200
+and the deleted note. If the note does not exist, the API returns 404.
+
+```
+DELETE /projects/:id/snippets/:snippet_id/notes/:note_id
+```
+
+Parameters:
+
+| Attribute | Type | Required | Description |
+| --------- | ---- | -------- | ----------- |
+| `id` | integer | yes | The ID of a project |
+| `snippet_id` | integer | yes | The ID of a snippet |
+| `note_id` | integer | yes | The ID of a note |
+
+```bash
+curl -X DELETE -H "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v3/projects/5/snippets/52/notes/1659
+```
+
+Example Response:
+
+```json
+{
+  "id": 1659,
+  "body": "This is a good idea.",
+  "attachment": null,
+  "author": {
+    "id": 1,
+    "username": "pipin",
+    "email": "admin@example.com",
+    "name": "Pip",
+    "state": "active",
+    "created_at": "2013-09-30T13:46:01Z",
+    "avatar_url": "http://www.gravatar.com/avatar/5224fd70153710e92fb8bcf79ac29d67?s=80&d=identicon",
+    "web_url": "https://gitlab.example.com/u/pipin"
+  },
+  "created_at": "2016-04-06T16:51:53.239Z",
+  "system": false,
+  "noteable_id": 52,
+  "noteable_type": "Snippet",
+  "upvote": false,
+  "downvote": false
+}
+```
+
 ## Merge Requests
 
 ### List all merge request notes
@@ -223,6 +319,7 @@ Parameters:
     "created_at": "2013-09-30T13:46:01Z"
   },
   "created_at": "2013-10-02T08:57:14Z",
+  "updated_at": "2013-10-02T08:57:14Z",
   "system": false,
   "upvote": false,
   "downvote": false,
@@ -259,3 +356,50 @@ Parameters:
 - `merge_request_id` (required) - The ID of a merge request
 - `note_id` (required) - The ID of a note
 - `body` (required) - The content of a note
+
+### Delete a merge request note
+
+Deletes an existing note of a merge request. On success, this API method returns
+200 and the deleted note. If the note does not exist, the API returns 404.
+
+```
+DELETE /projects/:id/merge_requests/:merge_request_id/notes/:note_id
+```
+
+Parameters:
+
+| Attribute | Type | Required | Description |
+| --------- | ---- | -------- | ----------- |
+| `id` | integer | yes | The ID of a project |
+| `merge_request_id` | integer | yes | The ID of a merge request |
+| `note_id` | integer | yes | The ID of a note |
+
+```bash
+curl -X DELETE -H "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v3/projects/5/merge_requests/7/notes/1602
+```
+
+Example Response:
+
+```json
+{
+  "id": 1602,
+  "body": "This is a good idea.",
+  "attachment": null,
+  "author": {
+    "id": 1,
+    "username": "pipin",
+    "email": "admin@example.com",
+    "name": "Pip",
+    "state": "active",
+    "created_at": "2013-09-30T13:46:01Z",
+    "avatar_url": "http://www.gravatar.com/avatar/5224fd70153710e92fb8bcf79ac29d67?s=80&d=identicon",
+    "web_url": "https://gitlab.example.com/u/pipin"
+  },
+  "created_at": "2016-04-05T22:11:59.923Z",
+  "system": false,
+  "noteable_id": 7,
+  "noteable_type": "MergeRequest",
+  "upvote": false,
+  "downvote": false
+}
+```
diff --git a/doc/api/projects.md b/doc/api/projects.md
index 3a909a2bc8..ab716c229d 100644
--- a/doc/api/projects.md
+++ b/doc/api/projects.md
@@ -780,8 +780,10 @@ Parameters:
 - `id` (required) - The ID or NAMESPACE/PROJECT_NAME of a project
 - `user_id` (required) - The ID of a team member
 
-This method is idempotent and can be called multiple times with the same parameters.
-Revoking team membership for a user who is not currently a team member is considered success.
+This method removes the project member if the user has the proper access rights to do so.
+It returns a status code 403 if the member does not have the proper rights to perform this action.
+In all other cases this method is idempotent and revoking team membership for a user who is not
+currently a team member is considered success.
 Please note that the returned JSON currently differs slightly. Thus you should not
 rely on the returned JSON structure.
 
diff --git a/doc/api/tags.md b/doc/api/tags.md
index c451a42b72..ac9fac92f4 100644
--- a/doc/api/tags.md
+++ b/doc/api/tags.md
@@ -40,14 +40,26 @@ Parameters:
 
 ## Get a single repository tag
 
-Get a specific repository tag determined by its name. It returns 200 together
-with the tag information if the tag exists. It returns 404 if the tag does not
+Get a specific repository tag determined by its name. It returns `200` together
+with the tag information if the tag exists. It returns `404` if the tag does not
 exist.
 
+```
+GET /projects/:id/repository/tags/:tag_name
+```
+
 Parameters:
 
-- `id` (required) - The ID of a project
-- `tag_name` (required) - The name of the tag
+| Attribute | Type | Required | Description |
+| --------- | ---- | -------- | ----------- |
+| `id` | integer | yes | The ID of a project |
+| `tag_name` | string | yes | The name of the tag |
+
+```bash
+curl -H "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v3/projects/5/repository/tags/v1.0.0
+```
+
+Example Response:
 
 ```json
 {
diff --git a/doc/ci/build_artifacts/README.md b/doc/ci/build_artifacts/README.md
index 71db5aa5dc..9553bb11e9 100644
--- a/doc/ci/build_artifacts/README.md
+++ b/doc/ci/build_artifacts/README.md
@@ -1,7 +1,10 @@
 # Introduction to build artifacts
 
 Artifacts is a list of files and directories which are attached to a build
-after it completes successfully.
+after it completes successfully.  This feature is enabled by default in all GitLab installations.
+
+_If you are searching for ways to use artifacts, jump to
+[Defining artifacts in `.gitlab-ci.yml`](#defining-artifacts-in-gitlab-ciyml)._
 
 Since GitLab 8.2 and [GitLab Runner] 0.7.0, build artifacts that are created by
 GitLab Runner are uploaded to GitLab and are downloadable as a single archive
@@ -16,13 +19,9 @@ The artifacts browser will be available only for new artifacts that are sent
 to GitLab using GitLab Runner version 1.0 and up. It will not be possible to
 browse old artifacts already uploaded to GitLab.
 
-## Enabling build artifacts
+## Disabling build artifacts
 
-_If you are searching for ways to use artifacts, jump to
-[Defining artifacts in `.gitlab-ci.yml`](#defining-artifacts-in-gitlab-ciyml)._
-
-The artifacts feature is enabled by default in all GitLab installations.
-To disable it site-wide, follow the steps below.
+To disable artifacts site-wide, follow the steps below.
 
 ---
 
diff --git a/doc/ci/ssh_keys/README.md b/doc/ci/ssh_keys/README.md
index 210f9c3e84..d790015aca 100644
--- a/doc/ci/ssh_keys/README.md
+++ b/doc/ci/ssh_keys/README.md
@@ -57,7 +57,7 @@ before_script:
   # WARNING: Use this only with the Docker executor, if you use it with shell
   # you will overwrite your user's SSH config.
   - mkdir -p ~/.ssh
-  - '[[ -f /.dockerinit ]] && echo -e "Host *\n\tStrictHostKeyChecking no\n\n" > ~/.ssh/config`
+  - '[[ -f /.dockerinit ]] && echo -e "Host *\n\tStrictHostKeyChecking no\n\n" > ~/.ssh/config'
 ```
 
 As a final step, add the _public_ key from the one you created earlier to the
diff --git a/doc/ci/yaml/README.md b/doc/ci/yaml/README.md
index 4316f3c1f6..7da9b31e30 100644
--- a/doc/ci/yaml/README.md
+++ b/doc/ci/yaml/README.md
@@ -38,7 +38,7 @@ services:
   - postgres
 
 before_script:
-  - bundle_install
+  - bundle install
 
 stages:
   - build
diff --git a/doc/development/README.md b/doc/development/README.md
index 1b281809af..3f3ef068f9 100644
--- a/doc/development/README.md
+++ b/doc/development/README.md
@@ -2,11 +2,15 @@
 
 - [Architecture](architecture.md) of GitLab
 - [CI setup](ci_setup.md) for testing GitLab
+- [Code review guidelines](code_review.md) for reviewing code and having code
+  reviewed.
 - [Gotchas](gotchas.md) to avoid
 - [How to dump production data to staging](db_dump.md)
+- [Instrumentation](instrumentation.md)
 - [Migration Style Guide](migration_style_guide.md) for creating safe migrations
 - [Rake tasks](rake_tasks.md) for development
 - [Shell commands](shell_commands.md) in the GitLab codebase
 - [Sidekiq debugging](sidekiq_debugging.md)
 - [SQL guidelines](sql.md) for SQL guidelines
+- [Testing standards and style guidelines](testing.md)
 - [UI guide](ui_guide.md) for building GitLab with existing css styles and elements
diff --git a/doc/development/code_review.md b/doc/development/code_review.md
new file mode 100644
index 0000000000..40ae55ab90
--- /dev/null
+++ b/doc/development/code_review.md
@@ -0,0 +1,78 @@
+# Code Review Guidelines
+
+This guide contains advice and best practices for performing code review, and
+having your code reviewed.
+
+All merge requests for GitLab CE and EE, whether written by a GitLab team member
+or a volunteer contributor, must go through a code review process to ensure the
+code is effective, understandable, and maintainable.
+
+Any developer can, and is encouraged to, perform code review on merge requests
+of colleagues and contributors. However, the final decision to accept a merge
+request is up to one of our merge request "endbosses", denoted on the
+[team page](https://about.gitlab.com/team).
+
+## Everyone
+
+- Accept that many programming decisions are opinions. Discuss tradeoffs, which
+  you prefer, and reach a resolution quickly.
+- Ask questions; don't make demands. ("What do you think about naming this
+  `:user_id`?")
+- Ask for clarification. ("I didn't understand. Can you clarify?")
+- Avoid selective ownership of code. ("mine", "not mine", "yours")
+- Avoid using terms that could be seen as referring to personal traits. ("dumb",
+  "stupid"). Assume everyone is attractive, intelligent, and well-meaning.
+- Be explicit. Remember people don't always understand your intentions online.
+- Be humble. ("I'm not sure - let's look it up.")
+- Don't use hyperbole. ("always", "never", "endlessly", "nothing")
+- Be careful about the use of sarcasm. Everything we do is public; what seems
+  like good-natured ribbing to you and a long-time colleague might come off as
+  mean and unwelcoming to a person new to the project.
+- Consider one-on-one chats or video calls if there are too many "I didn't
+  understand" or "Alternative solution:" comments. Post a follow-up comment
+  summarizing one-on-one discussion.
+
+## Having your code reviewed
+
+- The first reviewer of your code is _you_. Before you perform that first push
+  of your shiny new branch, read through the entire diff. Does it make sense?
+  Did you include something unrelated to the overall purpose of the changes? Did
+  you forget to remove any debugging code?
+- Be grateful for the reviewer's suggestions. ("Good call. I'll make that
+  change.")
+- Don't take it personally. The review is of the code, not of you.
+- Explain why the code exists. ("It's like that because of these reasons. Would
+  it be more clear if I rename this class/file/method/variable?")
+- Extract unrelated changes and refactorings into future merge requests/issues.
+- Seek to understand the reviewer's perspective.
+- Try to respond to every comment.
+- Push commits based on earlier rounds of feedback as isolated commits to the
+  branch. Do not squash until the branch is ready to merge. Reviewers should be
+  able to read individual updates based on their earlier feedback.
+
+## Reviewing code
+
+Understand why the change is necessary (fixes a bug, improves the user
+experience, refactors the existing code). Then:
+
+- Communicate which ideas you feel strongly about and those you don't.
+- Identify ways to simplify the code while still solving the problem.
+- Offer alternative implementations, but assume the author already considered
+  them. ("What do you think about using a custom validator here?")
+- Seek to understand the author's perspective.
+- If you don't understand a piece of code, _say so_. There's a good chance
+  someone else would be confused by it as well.
+- After a round of line notes, it can be helpful to post a summary note such as
+  "LGTM :thumbsup:", or "Just a couple things to address."
+- Avoid accepting a merge request before the build succeeds ("Merge when build
+  succeeds" is fine).
+
+## Credits
+
+Largely based on the [thoughtbot code review guide].
+
+[thoughtbot code review guide]: https://github.com/thoughtbot/guides/tree/master/code-review
+
+---
+
+[Return to Development documentation](README.md)
diff --git a/doc/development/instrumentation.md b/doc/development/instrumentation.md
new file mode 100644
index 0000000000..c1cf2e77c2
--- /dev/null
+++ b/doc/development/instrumentation.md
@@ -0,0 +1,36 @@
+# Instrumenting Ruby Code
+
+GitLab Performance Monitoring allows instrumenting of custom blocks of Ruby
+code. This can be used to measure the time spent in a specific part of a larger
+chunk of code. The resulting data is stored as a field in the transaction that
+executed the block.
+
+To start measuring a block of Ruby code you should use `Gitlab::Metrics.measure`
+and give it a name:
+
+```ruby
+Gitlab::Metrics.measure(:foo) do
+  ...
+end
+```
+
+3 values are measured for a block:
+
+1. The real time elapsed, stored in NAME_real_time.
+2. The CPU time elapsed, stored in NAME_cpu_time.
+3. The call count, stored in NAME_call_count.
+
+Both the real and CPU timings are measured in milliseconds.
+
+Multiple calls to the same block will result in the final values being the sum
+of all individual values. Take this code for example:
+
+```ruby
+3.times do
+  Gitlab::Metrics.measure(:sleep) do
+    sleep 1
+  end
+end
+```
+
+Here the final value of `sleep_real_time` will be `3`, _not_ `1`.
diff --git a/doc/development/testing.md b/doc/development/testing.md
new file mode 100644
index 0000000000..672e3fb464
--- /dev/null
+++ b/doc/development/testing.md
@@ -0,0 +1,136 @@
+# Testing Standards and Style Guidelines
+
+This guide outlines standards and best practices for automated testing of GitLab
+CE and EE.
+
+It is meant to be an _extension_ of the [thoughtbot testing
+styleguide](https://github.com/thoughtbot/guides/tree/master/style/testing). If
+this guide defines a rule that contradicts the thoughtbot guide, this guide
+takes precedence. Some guidelines may be repeated verbatim to stress their
+importance.
+
+## Factories
+
+GitLab uses [factory_girl] as a test fixture replacement.
+
+- Factory definitions live in `spec/factories/`, named using the pluralization
+  of their corresponding model (`User` factories are defined in `users.rb`).
+- There should be only one top-level factory definition per file.
+- FactoryGirl methods are mixed in to all RSpec groups. This means you can (and
+  should) call `create(...)` instead of `FactoryGirl.create(...)`.
+- Make use of [traits] to clean up definitions and usages.
+- When defining a factory, don't define attributes that are not required for the
+  resulting record to pass validation.
+- When instantiating from a factory, don't supply attributes that aren't
+  required by the test.
+- Factories don't have to be limited to `ActiveRecord` objects.
+  [See example](https://gitlab.com/gitlab-org/gitlab-ce/commit/0b8cefd3b2385a21cfed779bd659978c0402766d).
+
+[factory_girl]: https://github.com/thoughtbot/factory_girl
+[traits]: http://www.rubydoc.info/gems/factory_girl/file/GETTING_STARTED.md#Traits
+
+## JavaScript
+
+GitLab uses [Teaspoon] to run its [Jasmine] JavaScript specs. They can be run on
+the command line via `bundle exec teaspoon`, or via a web browser at
+`http://localhost:3000/teaspoon` when the Rails server is running.
+
+- JavaScript tests live in `spec/javascripts/`, matching the folder structure of
+  `app/assets/javascripts/`: `app/assets/javascripts/behaviors/autosize.js.coffee` has a corresponding
+  `spec/javascripts/behaviors/autosize_spec.js.coffee` file.
+- Haml fixtures required for JavaScript tests live in
+  `spec/javascripts/fixtures`. They should contain the bare minimum amount of
+  markup necessary for the test.
+
+    > **Warning:** Keep in mind that a Rails view may change and
+    invalidate your test, but everything will still pass because your fixture
+    doesn't reflect the latest view.
+
+- Keep in mind that in a CI environment, these tests are run in a headless
+  browser and you will not have access to certain APIs, such as
+  [`Notification`](https://developer.mozilla.org/en-US/docs/Web/API/notification),
+  which will have to be stubbed.
+
+[Teaspoon]: https://github.com/modeset/teaspoon
+[Jasmine]: https://github.com/jasmine/jasmine
+
+## RSpec
+
+### General Guidelines
+
+- Use a single, top-level `describe ClassName` block.
+- Use `described_class` instead of repeating the class name being described.
+- Use `.method` to describe class methods and `#method` to describe instance
+  methods.
+- Use `context` to test branching logic.
+- Don't `describe` symbols (see [Gotchas](gotchas.md#dont-describe-symbols)).
+- Prefer `not_to` to `to_not`.
+- Try to match the ordering of tests to the ordering within the class.
+- Try to follow the [Four-Phase Test][four-phase-test] pattern, using newlines
+  to separate phases.
+
+[four-phase-test]: https://robots.thoughtbot.com/four-phase-test
+
+### `let` variables
+
+GitLab's RSpec suite has made extensive use of `let` variables to reduce
+duplication. However, this sometimes [comes at the cost of clarity][lets-not],
+so we need to set some guidelines for their use going forward:
+
+- `let` variables are preferable to instance variables. Local variables are
+  preferable to `let` variables.
+- Use `let` to reduce duplication throughout an entire spec file.
+- Don't use `let` to define variables used by a single test; define them as
+  local variables inside the test's `it` block.
+- Don't define a `let` variable inside the top-level `describe` block that's
+  only used in a more deeply-nested `context` or `describe` block. Keep the
+  definition as close as possible to where it's used.
+- Try to avoid overriding the definition of one `let` variable with another.
+- Don't define a `let` variable that's only used by the definition of another.
+  Use a helper method instead.
+
+[lets-not]: https://robots.thoughtbot.com/lets-not
+
+### Test speed
+
+GitLab has a massive test suite that, without parallelization, can take more
+than an hour to run. It's important that we make an effort to write tests that
+are accurate and effective _as well as_ fast.
+
+Here are some things to keep in mind regarding test performance:
+
+- `double` and `spy` are faster than `FactoryGirl.build(...)`
+- `FactoryGirl.build(...)` and `.build_stubbed` are faster than `.create`.
+- Don't `create` an object when `build`, `build_stubbed`, `attributes_for`,
+  `spy`, or `double` will do. Database persistence is slow!
+- Use `create(:empty_project)` instead of `create(:project)` when you don't need
+  the underlying Git repository. Filesystem operations are slow!
+- Don't mark a feature as requiring JavaScript (through `@javascript` in
+  Spinach or `js: true` in RSpec) unless it's _actually_ required for the test
+  to be valid. Headless browser testing is slow!
+
+### Features / Integration
+
+- Feature specs live in `spec/features/` and should be named
+  `ROLE_ACTION_spec.rb`, such as `user_changes_password_spec.rb`.
+- Use only one `feature` block per feature spec file.
+- Use scenario titles that describe the success and failure paths.
+- Avoid scenario titles that add no information, such as "successfully."
+- Avoid scenario titles that repeat the feature title.
+
+## Spinach (feature) tests
+
+GitLab [moved from Cucumber to Spinach](https://github.com/gitlabhq/gitlabhq/pull/1426)
+for its feature/integration tests in September 2012.
+
+As of March 2016, we are [trying to avoid adding new Spinach
+tests](https://gitlab.com/gitlab-org/gitlab-ce/issues/14121) going forward,
+opting for [RSpec feature](#features-integration) specs.
+
+Adding new Spinach scenarios is acceptable _only if_ the new scenario requires
+no more than one new `step` definition. If more than that is required, the
+test should be re-implemented using RSpec instead.
+
+---
+
+[Return to Development documentation](README.md)
diff --git a/doc/development/ui_guide.md b/doc/development/ui_guide.md
index 2f01defc11..a3e260a5f8 100644
--- a/doc/development/ui_guide.md
+++ b/doc/development/ui_guide.md
@@ -1,9 +1,5 @@
 # UI Guide for building GitLab 
 
-## Best practices for creating new pages in GitLab
-
-TODO: write some best practices when develop GitLab features.
-
 ## GitLab UI development kit
 
 We created a page inside GitLab where you can check commonly used html and css elements.
diff --git a/doc/install/installation.md b/doc/install/installation.md
index e0a16df09c..f8f7d6a9eb 100644
--- a/doc/install/installation.md
+++ b/doc/install/installation.md
@@ -283,9 +283,13 @@ sudo usermod -aG redis git
     # Copy the example Rack attack config
     sudo -u git -H cp config/initializers/rack_attack.rb.example config/initializers/rack_attack.rb
 
-    # Configure Git global settings for git user, used when editing via web editor
+    # Configure Git global settings for git user
+    # 'autocrlf' is needed for the web editor
     sudo -u git -H git config --global core.autocrlf input
 
+    # Disable 'git gc --auto' because GitLab already runs 'git gc' when needed
+    sudo -u git -H git config --global gc.auto 0
+
     # Configure Redis connection settings
     sudo -u git -H cp config/resque.yml.example config/resque.yml
 
diff --git a/doc/integration/README.md b/doc/integration/README.md
index 7c8f785a61..6fe04aa2a0 100644
--- a/doc/integration/README.md
+++ b/doc/integration/README.md
@@ -19,26 +19,15 @@ See the documentation below for details on how to configure these services.
 
 GitLab Enterprise Edition contains [advanced Jenkins support][jenkins].
 
+[jenkins]: http://doc.gitlab.com/ee/integration/jenkins.html
+
+
 ## Project services
 
 Integration with services such as Campfire, Flowdock, Gemnasium, HipChat,
 Pivotal Tracker, and Slack are available in the form of a [Project Service][].
-You can find these within GitLab in the Services page under Project Settings if
-you are at least a master on the project.
-Project Services are a bit like plugins in that they allow a lot of freedom in
-adding functionality to GitLab. For example there is also a service that can
-send an email every time someone pushes new commits.
 
-Because GitLab is open source we can ship with the code and tests for all
-plugins. This allows the community to keep the plugins up to date so that they
-always work in newer GitLab versions.
-
-For an overview of what projects services are available without logging in,
-please see the [project_services directory][projects-code].
-
-[jenkins]: http://doc.gitlab.com/ee/integration/jenkins.html
 [Project Service]: ../project_services/project_services.md
-[projects-code]: https://gitlab.com/gitlab-org/gitlab-ce/tree/master/app/models/project_services
 
 ## SSL certificate errors
 
diff --git a/doc/integration/saml.md b/doc/integration/saml.md
index 1c3dc707f6..8a7205caaa 100644
--- a/doc/integration/saml.md
+++ b/doc/integration/saml.md
@@ -131,8 +131,75 @@ On the sign in page there should now be a SAML button below the regular sign in
 Click the icon to begin the authentication process. If everything goes well the user
 will be returned to GitLab and will be signed in.
 
+## External Groups
+
+>**Note:**
+This setting is only available on GitLab 8.7 and above.
+
+SAML login includes support for external groups. You can define in the SAML
+settings which groups, to which your users belong in your IdP, you wish to be
+marked as [external](../permissions/permissions.md).
+
+### Requirements
+
+First you need to tell GitLab where to look for group information. For this you
+need to make sure that your IdP server sends a specific `AttributeStament` along
+with the regular SAML response. Here is an example:
+
+```xml
+<saml:AttributeStatement>
+  <saml:Attribute Name="Groups">
+    <saml:AttributeValue xsi:type="xs:string">SecurityGroup</saml:AttributeValue>
+    <saml:AttributeValue xsi:type="xs:string">Developers</saml:AttributeValue>
+    <saml:AttributeValue xsi:type="xs:string">Designers</saml:AttributeValue>
+  </saml:Attribute>
+</saml:AttributeStatement>
+```
+
+The name of the attribute can be anything you like, but it must contain the groups
+to which a user belongs. In order to tell GitLab where to find these groups, you need
+to add a `groups_attribute:` element to your SAML settings. You will also need to
+tell GitLab which groups are external via the `external_groups:` element:
+
+```yaml
+{ name: 'saml',
+  label: 'Our SAML Provider',
+  groups_attribute: 'Groups',
+  external_groups: ['Freelancers', 'Interns'],
+  args: {
+          assertion_consumer_service_url: 'https://gitlab.example.com/users/auth/saml/callback',
+          idp_cert_fingerprint: '43:51:43:a1:b5:fc:8b:b7:0a:3a:a9:b1:0f:66:73:a8',
+          idp_sso_target_url: 'https://login.example.com/idp',
+          issuer: 'https://gitlab.example.com',
+          name_identifier_format: 'urn:oasis:names:tc:SAML:2.0:nameid-format:transient'
+        } }
+```
+
 ## Customization
 
+### `auto_sign_in_with_provider`
+
+You can add this setting to your GitLab configuration to automatically redirect you
+to your SAML server for authentication, thus removing the need to click a button
+before actually signing in.
+
+For omnibus package:
+
+```ruby
+gitlab_rails['omniauth_auto_sign_in_with_provider'] = 'saml'
+```
+
+For installations from source:
+
+```yaml
+omniauth:
+  auto_sign_in_with_provider: saml
+```
+
+Please keep in mind that every sign in attempt will be redirected to the SAML server,
+so you will not be able to sign in using local credentials. Make sure that at least one
+of the SAML users has admin permissions.
+
 ### `attribute_statements`
 
 >**Note:**
@@ -205,6 +272,10 @@ To bypass this you can add `skip_before_action :verify_authenticity_token` to th
 where it can then be seen in the usual logs, or as a flash message in the login
 screen.
 
+That file is located at `/opt/gitlab/embedded/service/gitlab-rails/app/controllers`
+for Omnibus installations and by default on `/home/git/gitlab/app/controllers` for
+installations from source.
+
 ### Invalid audience
 
 This error means that the IdP doesn't recognize GitLab as a valid sender and
diff --git a/doc/permissions/permissions.md b/doc/permissions/permissions.md
index 3d375e47c8..6219693b8a 100644
--- a/doc/permissions/permissions.md
+++ b/doc/permissions/permissions.md
@@ -52,10 +52,11 @@ documentation](../workflow/add-user/add-user.md).
 | Switch visibility level               |         |            |             |          | ✓      |
 | Transfer project to another namespace |         |            |             |          | ✓      |
 | Remove project                        |         |            |             |          | ✓      |
-| Force push to protected branches      |         |            |             |          |        |
-| Remove protected branches             |         |            |             |          |        |
+| Force push to protected branches [^2] |         |            |             |          |        |
+| Remove protected branches [^2]        |         |            |             |          |        |
 
 [^1]: If **Allow guest to access builds** is enabled in CI settings
+[^2]: Not allowed for Guest, Reporter, Developer, Master, or Owner
 
 ## Group
 
diff --git a/doc/project_services/project_services.md b/doc/project_services/project_services.md
index 3fea2cff0b..a5af620d9b 100644
--- a/doc/project_services/project_services.md
+++ b/doc/project_services/project_services.md
@@ -1,7 +1,24 @@
 # Project Services
 
 Project services allow you to integrate GitLab with other applications. Below
-is list of the currently supported ones. Click on the service links to see
+is list of the currently supported ones.
+
+You can find these within GitLab in the Services page under Project Settings if
+you are at least a master on the project.
+Project Services are a bit like plugins in that they allow a lot of freedom in
+adding functionality to GitLab. For example there is also a service that can
+send an email every time someone pushes new commits.
+
+Because GitLab is open source we can ship with the code and tests for all
+plugins. This allows the community to keep the plugins up to date so that they
+always work in newer GitLab versions.
+
+For an overview of what projects services are available without logging in,
+please see the [project_services directory][projects-code].
+
+[projects-code]: https://gitlab.com/gitlab-org/gitlab-ce/tree/master/app/models/project_services
+
+Click on the service links to see
 further configuration instructions and details. Contributions are welcome.
 
 ## Services
diff --git a/doc/update/8.6-to-8.7.md b/doc/update/8.6-to-8.7.md
index 76eee147c7..8599133a72 100644
--- a/doc/update/8.6-to-8.7.md
+++ b/doc/update/8.6-to-8.7.md
@@ -86,6 +86,14 @@ sudo -u git -H bundle exec rake assets:clean assets:precompile cache:clear RAILS
 
 ### 7. Update configuration files
 
+#### Git configuration
+
+Disable `git gc --auto` because GitLab runs `git gc` for us already.
+
+```sh
+sudo -u git -H git config --global gc.auto 0
+```
+
 #### Nginx configuration
 
 Ensure you're still up-to-date with the latest NGINX configuration changes:
diff --git a/features/groups.feature b/features/groups.feature
index 49e939807b..419a5d3963 100644
--- a/features/groups.feature
+++ b/features/groups.feature
@@ -7,6 +7,10 @@ Feature: Groups
     When I visit group "NonExistentGroup" page
     Then page status code should be 404
 
+  Scenario: I should have back to group button
+    When I visit group "Owned" page
+    Then I should see back to dashboard button
+
   @javascript
   Scenario: I should see group "Owned" dashboard list
     When I visit group "Owned" page
diff --git a/features/project/forked_merge_requests.feature b/features/project/forked_merge_requests.feature
index 10bd6fec80..67f1e117f7 100644
--- a/features/project/forked_merge_requests.feature
+++ b/features/project/forked_merge_requests.feature
@@ -4,6 +4,7 @@ Feature: Project Forked Merge Requests
     And I am a member of project "Shop"
     And I have a project forked off of "Shop" called "Forked Shop"
 
+  @javascript
   Scenario: I submit new unassigned merge request to a forked project
     Given I visit project "Forked Shop" merge requests page
     And I click link "New Merge Request"
diff --git a/features/project/merge_requests.feature b/features/project/merge_requests.feature
index 823658b4f2..ecda4ea824 100644
--- a/features/project/merge_requests.feature
+++ b/features/project/merge_requests.feature
@@ -70,6 +70,7 @@ Feature: Project Merge Requests
     When I click link "Reopen"
     Then I should see reopened merge request "Bug NS-04"
 
+  @javascript
   Scenario: I submit new unassigned merge request
     Given I click link "New Merge Request"
     And I submit new merge request "Wiki Feature"
diff --git a/features/project/project.feature b/features/project/project.feature
index aa22401c88..f1f3ed2606 100644
--- a/features/project/project.feature
+++ b/features/project/project.feature
@@ -18,6 +18,15 @@ Feature: Project
     Then I should see the default project avatar
     And I should not see the "Remove avatar" button
 
+  Scenario: I should have back to group button
+    And project "Shop" belongs to group
+    And I visit project "Shop" page
+    Then I should see back to group button
+
+  Scenario: I should have back to group button
+    And I visit project "Shop" page
+    Then I should see back to dashboard button
+
   Scenario: I should have readme on page
     And I visit project "Shop" page
     Then I should see project "Shop" README
diff --git a/features/steps/dashboard/todos.rb b/features/steps/dashboard/todos.rb
index 30b21b93ac..a6e574f12a 100644
--- a/features/steps/dashboard/todos.rb
+++ b/features/steps/dashboard/todos.rb
@@ -26,6 +26,7 @@ class Spinach::Features::DashboardTodos < Spinach::FeatureSteps
   end
 
   step 'I should see todos assigned to me' do
+    page.within('.nav-sidebar') { expect(page).to have_content 'Todos 4' }
     expect(page).to have_content 'To do 4'
     expect(page).to have_content 'Done 0'
 
@@ -41,6 +42,7 @@ class Spinach::Features::DashboardTodos < Spinach::FeatureSteps
       click_link 'Done'
     end
 
+    page.within('.nav-sidebar') { expect(page).to have_content 'Todos 3' }
     expect(page).to have_content 'To do 3'
     expect(page).to have_content 'Done 1'
     should_not_see_todo "John Doe assigned you merge request !#{merge_request.iid}"
diff --git a/features/steps/group/milestones.rb b/features/steps/group/milestones.rb
index b6ce5bc9ce..a167d25983 100644
--- a/features/steps/group/milestones.rb
+++ b/features/steps/group/milestones.rb
@@ -5,9 +5,7 @@ class Spinach::Features::GroupMilestones < Spinach::FeatureSteps
   include SharedUser
 
   step 'I click on group milestones' do
-    page.within '.nav-secondary' do
-      click_link("Milestones")
-    end
+    click_link 'Milestones'
   end
 
   step 'I should see group milestones index page has no milestones' do
diff --git a/features/steps/groups.rb b/features/steps/groups.rb
index 483370f41c..e5b7db4c5e 100644
--- a/features/steps/groups.rb
+++ b/features/steps/groups.rb
@@ -4,6 +4,10 @@ class Spinach::Features::Groups < Spinach::FeatureSteps
   include SharedGroup
   include SharedUser
 
+  step 'I should see back to dashboard button' do
+    expect(page).to have_content 'Go to dashboard'
+  end
+
   step 'I should see group "Owned"' do
     expect(page).to have_content '@owned'
   end
diff --git a/features/steps/project/active_tab.rb b/features/steps/project/active_tab.rb
index 4584fc4d75..19d81453d8 100644
--- a/features/steps/project/active_tab.rb
+++ b/features/steps/project/active_tab.rb
@@ -82,9 +82,7 @@ class Spinach::Features::ProjectActiveTab < Spinach::FeatureSteps
   # Sub Tabs: Issues
 
   step 'I click the "Milestones" tab' do
-    page.within '.nav-secondary' do
-      click_link('Milestones')
-    end
+    click_link('Milestones')
   end
 
   step 'I click the "Labels" tab' do
diff --git a/features/steps/project/fork.rb b/features/steps/project/fork.rb
index d9b16afa9b..527f7853da 100644
--- a/features/steps/project/fork.rb
+++ b/features/steps/project/fork.rb
@@ -36,7 +36,7 @@ class Spinach::Features::ProjectFork < Spinach::FeatureSteps
   end
 
   step 'I goto the Merge Requests page' do
-    page.within '.nav-secondary' do
+    page.within '.page-sidebar-expanded' do
       click_link "Merge Requests"
     end
   end
diff --git a/features/steps/project/forked_merge_requests.rb b/features/steps/project/forked_merge_requests.rb
index 7e4425ff66..612bb8fd8b 100644
--- a/features/steps/project/forked_merge_requests.rb
+++ b/features/steps/project/forked_merge_requests.rb
@@ -34,10 +34,14 @@ class Spinach::Features::ProjectForkedMergeRequests < Spinach::FeatureSteps
   end
 
   step 'I fill out a "Merge Request On Forked Project" merge request' do
-    select @forked_project.path_with_namespace, from: "merge_request_source_project_id"
-    select @project.path_with_namespace, from: "merge_request_target_project_id"
-    select "fix", from: "merge_request_source_branch"
-    select "master", from: "merge_request_target_branch"
+    first('.js-source-project').click
+    first('.dropdown-source-project a', text: @forked_project.path_with_namespace)
+
+    first('.js-target-project').click
+    first('.dropdown-target-project a', text: @project.path_with_namespace)
+
+    first('.js-source-branch').click
+    first('.dropdown-source-branch .dropdown-content a', text: 'fix').click
 
     click_button "Compare branches and continue"
 
@@ -115,10 +119,10 @@ class Spinach::Features::ProjectForkedMergeRequests < Spinach::FeatureSteps
   end
 
   step 'I fill out an invalid "Merge Request On Forked Project" merge request' do
-    expect(find(:select, "merge_request_source_project_id", {}).value).to eq @forked_project.id.to_s
-    expect(find(:select, "merge_request_target_project_id", {}).value).to eq @project.id.to_s
-    expect(find(:select, "merge_request_source_branch", {}).value).to eq ""
-    expect(find(:select, "merge_request_target_branch", {}).value).to eq "master"
+    expect(find_by_id("merge_request_source_project_id", visible: false).value).to eq @forked_project.id.to_s
+    expect(find_by_id("merge_request_target_project_id", visible: false).value).to eq @project.id.to_s
+    expect(find_by_id("merge_request_source_branch", visible: false).value).to eq nil
+    expect(find_by_id("merge_request_target_branch", visible: false).value).to eq "master"
     click_button "Compare branches"
   end
 
@@ -127,7 +131,7 @@ class Spinach::Features::ProjectForkedMergeRequests < Spinach::FeatureSteps
   end
 
   step 'the target repository should be the original repository' do
-    expect(page).to have_select("merge_request_target_project_id", selected: @project.path_with_namespace)
+    expect(find_by_id("merge_request_target_project_id").value).to eq "#{@project.id}"
   end
 
   step 'I click "Assign to" dropdown"' do
diff --git a/features/steps/project/issues/labels.rb b/features/steps/project/issues/labels.rb
index 2ab8956867..0ca2d6257c 100644
--- a/features/steps/project/issues/labels.rb
+++ b/features/steps/project/issues/labels.rb
@@ -15,7 +15,7 @@ class Spinach::Features::ProjectIssuesLabels < Spinach::FeatureSteps
 
   step 'I delete all labels' do
     page.within '.labels' do
-      page.all('.btn-remove').each do |remove|
+      page.all('.remove-row').each do |remove|
         remove.click
         sleep 0.05
       end
diff --git a/features/steps/project/merge_requests.rb b/features/steps/project/merge_requests.rb
index a4f02b590e..f0af0d097f 100644
--- a/features/steps/project/merge_requests.rb
+++ b/features/steps/project/merge_requests.rb
@@ -93,8 +93,12 @@ class Spinach::Features::ProjectMergeRequests < Spinach::FeatureSteps
   end
 
   step 'I submit new merge request "Wiki Feature"' do
-    select "fix", from: "merge_request_source_branch"
-    select "feature", from: "merge_request_target_branch"
+    find('.js-source-branch').click
+    find('.dropdown-source-branch .dropdown-content a', text: 'fix').click
+
+    find('.js-target-branch').click
+    first('.dropdown-target-branch .dropdown-content a', text: 'feature').click
+
     click_button "Compare branches"
     fill_in "merge_request_title", with: "Wiki Feature"
     click_button "Submit merge request"
diff --git a/features/steps/project/project.rb b/features/steps/project/project.rb
index 8f1d4a223a..ef185861e0 100644
--- a/features/steps/project/project.rb
+++ b/features/steps/project/project.rb
@@ -114,9 +114,7 @@ class Spinach::Features::Project < Spinach::FeatureSteps
   end
 
   step 'I should not see "Snippets" button' do
-    page.within '.nav-secondary' do
-      expect(page).not_to have_link 'Snippets'
-    end
+    expect(page).not_to have_link 'Snippets'
   end
 
   step 'project "Shop" belongs to group' do
@@ -125,6 +123,14 @@ class Spinach::Features::Project < Spinach::FeatureSteps
     @project.save!
   end
 
+  step 'I should see back to dashboard button' do
+    expect(page).to have_content 'Go to dashboard'
+  end
+
+  step 'I should see back to group button' do
+    expect(page).to have_content 'Go to group'
+  end
+
   step 'I click notifications drop down button' do
     click_link 'notifications-button'
   end
diff --git a/features/steps/project/source/browse_files.rb b/features/steps/project/source/browse_files.rb
index 243469b8e7..e072505e5d 100644
--- a/features/steps/project/source/browse_files.rb
+++ b/features/steps/project/source/browse_files.rb
@@ -213,13 +213,12 @@ class Spinach::Features::ProjectSourceBrowseFiles < Spinach::FeatureSteps
   end
 
   step 'I see Browse file link' do
-    expect(page).to have_link 'Browse File »'
-    expect(page).not_to have_link 'Browse Files »'
+    expect(page).to have_link 'Browse File'
+    expect(page).not_to have_link 'Browse Files'
   end
 
   step 'I see Browse code link' do
-    expect(page).to have_link 'Browse Files »'
-    expect(page).not_to have_link 'Browse File »'
+    expect(page).to have_link 'Browse Files'
     expect(page).not_to have_link 'Browse Directory »'
   end
 
diff --git a/features/steps/shared/diff_note.rb b/features/steps/shared/diff_note.rb
index 32c3e99f45..1448c3f44c 100644
--- a/features/steps/shared/diff_note.rb
+++ b/features/steps/shared/diff_note.rb
@@ -155,7 +155,7 @@ module SharedDiffNote
 
   step 'I should see a discussion reply button' do
     page.within(diff_file_selector) do
-      expect(page).to have_button('Reply')
+      expect(page).to have_button('Reply...')
     end
   end
 
diff --git a/features/steps/shared/project_tab.rb b/features/steps/shared/project_tab.rb
index fa7d24ce61..4fc2ece79f 100644
--- a/features/steps/shared/project_tab.rb
+++ b/features/steps/shared/project_tab.rb
@@ -41,7 +41,7 @@ module SharedProjectTab
   end
 
   step 'the active main tab should be Settings' do
-    page.within '.nav-secondary' do
+    page.within '.nav-sidebar' do
       expect(page).to have_content('Go to project')
     end
   end
diff --git a/lib/api/branches.rb b/lib/api/branches.rb
index 592100a704..231840148d 100644
--- a/lib/api/branches.rb
+++ b/lib/api/branches.rb
@@ -64,7 +64,7 @@ module API
         authorize_admin_project
 
         @branch = user_project.repository.find_branch(params[:branch])
-        not_found!("Branch does not exist") unless @branch
+        not_found!("Branch") unless @branch
         protected_branch = user_project.protected_branches.find_by(name: @branch.name)
         protected_branch.destroy if protected_branch
 
diff --git a/lib/api/entities.rb b/lib/api/entities.rb
index 4c49442bf8..939469b388 100644
--- a/lib/api/entities.rb
+++ b/lib/api/entities.rb
@@ -170,6 +170,10 @@ module API
       expose :label_names, as: :labels
       expose :milestone, using: Entities::Milestone
       expose :assignee, :author, using: Entities::UserBasic
+
+      expose :subscribed do |issue, options|
+        issue.subscribed?(options[:current_user])
+      end
     end
 
     class MergeRequest < ProjectEntity
@@ -183,6 +187,10 @@ module API
       expose :milestone, using: Entities::Milestone
       expose :merge_when_build_succeeds
       expose :merge_status
+
+      expose :subscribed do |merge_request, options|
+        merge_request.subscribed?(options[:current_user])
+      end
     end
 
     class MergeRequestChanges < MergeRequest
@@ -204,7 +212,7 @@ module API
       expose :note, as: :body
       expose :attachment_identifier, as: :attachment
       expose :author, using: Entities::UserBasic
-      expose :created_at
+      expose :created_at, :updated_at
       expose :system?, as: :system
       expose :noteable_id, :noteable_type
       # upvote? and downvote? are deprecated, always return false
@@ -293,6 +301,7 @@ module API
 
     class Label < Grape::Entity
       expose :name, :color, :description
+      expose :open_issues_count, :closed_issues_count, :open_merge_requests_count
     end
 
     class Compare < Grape::Entity
diff --git a/lib/api/issues.rb b/lib/api/issues.rb
index 1fee1dee1a..c4ea05ee6c 100644
--- a/lib/api/issues.rb
+++ b/lib/api/issues.rb
@@ -55,7 +55,7 @@ module API
         issues = filter_issues_state(issues, params[:state]) unless params[:state].nil?
         issues = filter_issues_labels(issues, params[:labels]) unless params[:labels].nil?
         issues.reorder(issuable_order_by => issuable_sort)
-        present paginate(issues), with: Entities::Issue
+        present paginate(issues), with: Entities::Issue, current_user: current_user
       end
     end
 
@@ -92,7 +92,7 @@ module API
         end
 
         issues.reorder(issuable_order_by => issuable_sort)
-        present paginate(issues), with: Entities::Issue
+        present paginate(issues), with: Entities::Issue, current_user: current_user
       end
 
       # Get a single project issue
@@ -105,7 +105,7 @@ module API
       get ":id/issues/:issue_id" do
         @issue = user_project.issues.find(params[:issue_id])
         not_found! unless can?(current_user, :read_issue, @issue)
-        present @issue, with: Entities::Issue
+        present @issue, with: Entities::Issue, current_user: current_user
       end
 
       # Create a new project issue
@@ -149,7 +149,7 @@ module API
             issue.add_labels_by_names(params[:labels].split(','))
           end
 
-          present issue, with: Entities::Issue
+          present issue, with: Entities::Issue, current_user: current_user
         else
           render_validation_error!(issue)
         end
@@ -189,7 +189,7 @@ module API
             issue.add_labels_by_names(params[:labels].split(','))
           end
 
-          present issue, with: Entities::Issue
+          present issue, with: Entities::Issue, current_user: current_user
         else
           render_validation_error!(issue)
         end
diff --git a/lib/api/merge_requests.rb b/lib/api/merge_requests.rb
index 93052fba06..4e7de8867b 100644
--- a/lib/api/merge_requests.rb
+++ b/lib/api/merge_requests.rb
@@ -56,7 +56,7 @@ module API
           end
 
         merge_requests = merge_requests.reorder(issuable_order_by => issuable_sort)
-        present paginate(merge_requests), with: Entities::MergeRequest
+        present paginate(merge_requests), with: Entities::MergeRequest, current_user: current_user
       end
 
       # Create MR
@@ -94,7 +94,7 @@ module API
             merge_request.add_labels_by_names(params[:labels].split(","))
           end
 
-          present merge_request, with: Entities::MergeRequest
+          present merge_request, with: Entities::MergeRequest, current_user: current_user
         else
           handle_merge_request_errors! merge_request.errors
         end
@@ -130,7 +130,7 @@ module API
 
           authorize! :read_merge_request, merge_request
 
-          present merge_request, with: Entities::MergeRequest
+          present merge_request, with: Entities::MergeRequest, current_user: current_user
         end
 
         # Show MR commits
@@ -162,7 +162,7 @@ module API
           merge_request = user_project.merge_requests.
             find(params[:merge_request_id])
           authorize! :read_merge_request, merge_request
-          present merge_request, with: Entities::MergeRequestChanges
+          present merge_request, with: Entities::MergeRequestChanges, current_user: current_user
         end
 
         # Update MR
@@ -204,7 +204,7 @@ module API
               merge_request.add_labels_by_names(params[:labels].split(","))
             end
 
-            present merge_request, with: Entities::MergeRequest
+            present merge_request, with: Entities::MergeRequest, current_user: current_user
           else
             handle_merge_request_errors! merge_request.errors
           end
@@ -246,7 +246,7 @@ module API
               execute(merge_request)
           end
 
-          present merge_request, with: Entities::MergeRequest
+          present merge_request, with: Entities::MergeRequest, current_user: current_user
         end
 
         # Cancel Merge if Merge When build succeeds is enabled
@@ -325,7 +325,7 @@ module API
         get "#{path}/closes_issues" do
           merge_request = user_project.merge_requests.find(params[:merge_request_id])
           issues = ::Kaminari.paginate_array(merge_request.closes_issues(current_user))
-          present paginate(issues), with: Entities::Issue
+          present paginate(issues), with: Entities::Issue, current_user: current_user
         end
       end
     end
diff --git a/lib/api/milestones.rb b/lib/api/milestones.rb
index c5cd73943f..84b4d4cdd6 100644
--- a/lib/api/milestones.rb
+++ b/lib/api/milestones.rb
@@ -3,17 +3,35 @@ module API
   class Milestones < Grape::API
     before { authenticate! }
 
+    helpers do
+      def filter_milestones_state(milestones, state)
+        case state
+        when 'active' then milestones.active
+        when 'closed' then milestones.closed
+        else milestones
+        end
+      end
+    end
+
     resource :projects do
       # Get a list of project milestones
       #
       # Parameters:
-      #   id (required) - The ID of a project
+      #   id (required)    - The ID of a project
+      #   state (optional) - Return "active" or "closed" milestones
       # Example Request:
       #   GET /projects/:id/milestones
+      #   GET /projects/:id/milestones?iid=42
+      #   GET /projects/:id/milestones?state=active
+      #   GET /projects/:id/milestones?state=closed
       get ":id/milestones" do
         authorize! :read_milestone, user_project
 
-        present paginate(user_project.milestones), with: Entities::Milestone
+        milestones = user_project.milestones
+        milestones = filter_milestones_state(milestones, params[:state])
+        milestones = filter_by_iid(milestones, params[:iid]) if params[:iid].present?
+
+        present paginate(milestones), with: Entities::Milestone
       end
 
       # Get a single project milestone
@@ -87,7 +105,7 @@ module API
         authorize! :read_milestone, user_project
 
         @milestone = user_project.milestones.find(params[:milestone_id])
-        present paginate(@milestone.issues), with: Entities::Issue
+        present paginate(@milestone.issues), with: Entities::Issue, current_user: current_user
       end
 
     end
diff --git a/lib/api/notes.rb b/lib/api/notes.rb
index 174473f537..a1c98f5e8f 100644
--- a/lib/api/notes.rb
+++ b/lib/api/notes.rb
@@ -112,6 +112,23 @@ module API
           end
         end
 
+        # Delete a +noteable+ note
+        #
+        # Parameters:
+        #   id (required) - The ID of a project
+        #   noteable_id (required) - The ID of an issue, MR, or snippet
+        #   node_id (required) - The ID of a note
+        # Example Request:
+        #   DELETE /projects/:id/issues/:noteable_id/notes/:note_id
+        #   DELETE /projects/:id/snippets/:noteable_id/notes/:node_id
+        delete ":id/#{noteables_str}/:#{noteable_id_str}/notes/:note_id" do
+          note = user_project.notes.find(params[:note_id])
+          authorize! :admin_note, note
+
+          ::Notes::DeleteService.new(user_project, current_user).execute(note)
+
+          present note, with: Entities::Note
+        end
       end
     end
   end
diff --git a/lib/api/project_members.rb b/lib/api/project_members.rb
index c756bb479f..4aefdf319c 100644
--- a/lib/api/project_members.rb
+++ b/lib/api/project_members.rb
@@ -93,12 +93,17 @@ module API
       # Example Request:
       #   DELETE /projects/:id/members/:user_id
       delete ":id/members/:user_id" do
-        authorize! :admin_project, user_project
         project_member = user_project.project_members.find_by(user_id: params[:user_id])
-        unless project_member.nil?
-          project_member.destroy
-        else
+
+        unless current_user.can?(:admin_project, user_project) ||
+                current_user.can?(:destroy_project_member, project_member)
+          forbidden!
+        end
+
+        if project_member.nil?
           { message: "Access revoked", id: params[:user_id].to_i }
+        else
+          project_member.destroy
         end
       end
     end
diff --git a/lib/api/tags.rb b/lib/api/tags.rb
index 731a68082b..d1a10479e4 100644
--- a/lib/api/tags.rb
+++ b/lib/api/tags.rb
@@ -19,15 +19,15 @@ module API
       # Get a single repository tag
       #
       # Parameters:
-      #   id (required) - The ID of a project
+      #   id (required)       - The ID of a project
       #   tag_name (required) - The name of the tag
       # Example Request:
       #   GET /projects/:id/repository/tags/:tag_name
-      get ":id/repository/tags/:tag_name", requirements: { tag_name: /.*/ } do
+      get ":id/repository/tags/:tag_name", requirements: { tag_name: /.+/ } do
         tag = user_project.repository.find_tag(params[:tag_name])
         not_found!('Tag') unless tag
 
-        present tag,  with: Entities::RepoTag, project: user_project
+        present tag, with: Entities::RepoTag, project: user_project
       end
 
       # Create tag
diff --git a/lib/banzai/filter/abstract_reference_filter.rb b/lib/banzai/filter/abstract_reference_filter.rb
index f21dbef216..b8962379cb 100644
--- a/lib/banzai/filter/abstract_reference_filter.rb
+++ b/lib/banzai/filter/abstract_reference_filter.rb
@@ -119,7 +119,7 @@ module Banzai
 
           elsif element_node?(node)
             yield_valid_link(node) do |link, text|
-              if ref_pattern && link =~ /\A#{ref_pattern}/
+              if ref_pattern && link =~ /\A#{ref_pattern}\z/
                 replace_link_node_with_href(node, link) do
                   object_link_filter(link, ref_pattern, link_text: text)
                 end
diff --git a/lib/banzai/filter/gollum_tags_filter.rb b/lib/banzai/filter/gollum_tags_filter.rb
index 7ce26db1b9..d08267a9d6 100644
--- a/lib/banzai/filter/gollum_tags_filter.rb
+++ b/lib/banzai/filter/gollum_tags_filter.rb
@@ -118,7 +118,7 @@ module Banzai
         end
 
         if path
-          content_tag(:img, nil, src: path)
+          content_tag(:img, nil, src: path, class: 'gfm')
         end
       end
 
@@ -144,12 +144,18 @@ module Banzai
       # if it is not.
       def process_page_link_tag(parts)
         if parts.size == 1
-          url = parts[0].strip
+          reference = parts[0].strip
         else
-          name, url = *parts.compact.map(&:strip)
+          name, reference = *parts.compact.map(&:strip)
         end
 
-        content_tag(:a, name || url, href: url)
+        if url?(reference)
+          href = reference
+        else
+          href = ::File.join(project_wiki_base_path, reference)
+        end
+
+        content_tag(:a, name || reference, href: href, class: 'gfm')
       end
 
       def project_wiki
diff --git a/lib/banzai/filter/wiki_link_filter.rb b/lib/banzai/filter/wiki_link_filter.rb
new file mode 100644
index 0000000000..06d10c9850
--- /dev/null
+++ b/lib/banzai/filter/wiki_link_filter.rb
@@ -0,0 +1,56 @@
+require 'uri'
+
+module Banzai
+  module Filter
+    # HTML filter that "fixes" relative links to files in a repository.
+    #
+    # Context options:
+    #   :project_wiki
+    class WikiLinkFilter < HTML::Pipeline::Filter
+
+      def call
+        return doc unless project_wiki?
+
+        doc.search('a:not(.gfm)').each do |el|
+          process_link_attr el.attribute('href')
+        end
+
+        doc
+      end
+
+      protected
+
+      def project_wiki?
+        !context[:project_wiki].nil?
+      end
+
+      def process_link_attr(html_attr)
+        return if html_attr.blank? || file_reference?(html_attr)
+
+        uri = URI(html_attr.value)
+        if uri.relative? && uri.path.present?
+          html_attr.value = rebuild_wiki_uri(uri).to_s
+        end
+      rescue URI::Error
+        # noop
+      end
+
+      def rebuild_wiki_uri(uri)
+        uri.path = ::File.join(project_wiki_base_path, uri.path)
+        uri
+      end
+
+      def file_reference?(html_attr)
+        !File.extname(html_attr.value).blank?
+      end
+
+      def project_wiki
+        context[:project_wiki]
+      end
+
+      def project_wiki_base_path
+        project_wiki && project_wiki.wiki_base_path
+      end
+    end
+  end
+end
diff --git a/lib/banzai/pipeline/wiki_pipeline.rb b/lib/banzai/pipeline/wiki_pipeline.rb
index 0b5a9e0b2b..c37b8e71cb 100644
--- a/lib/banzai/pipeline/wiki_pipeline.rb
+++ b/lib/banzai/pipeline/wiki_pipeline.rb
@@ -2,8 +2,10 @@ module Banzai
   module Pipeline
     class WikiPipeline < FullPipeline
       def self.filters
-        @filters ||= super.insert_after(Filter::TableOfContentsFilter,
-                                        Filter::GollumTagsFilter)
+        @filters ||= begin
+          super.insert_after(Filter::TableOfContentsFilter, Filter::GollumTagsFilter)
+               .insert_before(Filter::TaskListFilter, Filter::WikiLinkFilter)
+        end
       end
     end
   end
diff --git a/lib/banzai/renderer.rb b/lib/banzai/renderer.rb
index ae714c87dc..c14a9c4c72 100644
--- a/lib/banzai/renderer.rb
+++ b/lib/banzai/renderer.rb
@@ -19,8 +19,10 @@ module Banzai
       cache_key = full_cache_key(cache_key, context[:pipeline])
 
       if cache_key
-        Rails.cache.fetch(cache_key) do
-          cacheless_render(text, context)
+        Gitlab::Metrics.measure(:banzai_cached_render) do
+          Rails.cache.fetch(cache_key) do
+            cacheless_render(text, context)
+          end
         end
       else
         cacheless_render(text, context)
@@ -64,13 +66,15 @@ module Banzai
     private
 
     def self.cacheless_render(text, context = {})
-      result = render_result(text, context)
+      Gitlab::Metrics.measure(:banzai_cacheless_render) do
+        result = render_result(text, context)
 
-      output = result[:output]
-      if output.respond_to?(:to_html)
-        output.to_html
-      else
-        output.to_s
+        output = result[:output]
+        if output.respond_to?(:to_html)
+          output.to_html
+        else
+          output.to_s
+        end
       end
     end
 
diff --git a/lib/gitlab/badge/build.rb b/lib/gitlab/badge/build.rb
index 28a2391dbf..e5e9fab3f5 100644
--- a/lib/gitlab/badge/build.rb
+++ b/lib/gitlab/badge/build.rb
@@ -4,12 +4,13 @@ module Gitlab
     # Build badge
     #
     class Build
-      def initialize(project, ref)
-        @image = ::Ci::ImageForBuildService.new.execute(project, ref: ref)
-      end
+      include Gitlab::Application.routes.url_helpers
+      include ActionView::Helpers::AssetTagHelper
+      include ActionView::Helpers::UrlHelper
 
-      def to_s
-        @image[:name].sub(/\.svg$/, '')
+      def initialize(project, ref)
+        @project, @ref = project, ref
+        @image = ::Ci::ImageForBuildService.new.execute(project, ref: ref)
       end
 
       def type
@@ -19,6 +20,27 @@ module Gitlab
       def data
         File.read(@image[:path])
       end
+
+      def to_s
+        @image[:name].sub(/\.svg$/, '')
+      end
+
+      def to_html
+        link_to(image_tag(image_url, alt: 'build status'), link_url)
+      end
+
+      def to_markdown
+        "[![build status](#{image_url})](#{link_url})"
+      end
+
+      def image_url
+        build_namespace_project_badges_url(@project.namespace,
+                                           @project, @ref, format: :svg)
+      end
+
+      def link_url
+        namespace_project_commits_url(@project.namespace, @project, id: @ref)
+      end
     end
   end
 end
diff --git a/lib/gitlab/exclusive_lease.rb b/lib/gitlab/exclusive_lease.rb
index c73eca832d..c2260a5f7a 100644
--- a/lib/gitlab/exclusive_lease.rb
+++ b/lib/gitlab/exclusive_lease.rb
@@ -43,7 +43,9 @@ module Gitlab
     # false if the lease is already taken.
     def try_obtain
       # Performing a single SET is atomic
-      !!redis.set(redis_key, '1', nx: true, ex: @timeout)
+      Gitlab::Redis.with do |redis|
+        !!redis.set(redis_key, '1', nx: true, ex: @timeout)
+      end
     end
 
     # No #cancel method. See comments above!
diff --git a/lib/gitlab/ldap/access.rb b/lib/gitlab/ldap/access.rb
index da4435c730..f2b649e50a 100644
--- a/lib/gitlab/ldap/access.rb
+++ b/lib/gitlab/ldap/access.rb
@@ -33,7 +33,10 @@ module Gitlab
 
       def allowed?
         if ldap_user
-          return true unless ldap_config.active_directory
+          unless ldap_config.active_directory
+            user.activate if user.ldap_blocked?
+            return true
+          end
 
           # Block user in GitLab if he/she was blocked in AD
           if Gitlab::LDAP::Person.disabled_via_active_directory?(user.ldap_identity.extern_uid, adapter)
diff --git a/lib/gitlab/metrics.rb b/lib/gitlab/metrics.rb
index 88a265c6af..2a0a5629be 100644
--- a/lib/gitlab/metrics.rb
+++ b/lib/gitlab/metrics.rb
@@ -70,6 +70,40 @@ module Gitlab
       value.to_s.gsub('=', '\\=')
     end
 
+    # Measures the execution time of a block.
+    #
+    # Example:
+    #
+    #     Gitlab::Metrics.measure(:find_by_username_duration) do
+    #       User.find_by_username(some_username)
+    #     end
+    #
+    # name - The name of the field to store the execution time in.
+    #
+    # Returns the value yielded by the supplied block.
+    def self.measure(name)
+      trans = current_transaction
+
+      return yield unless trans
+
+      real_start = Time.now.to_f
+      cpu_start = System.cpu_time
+
+      retval = yield
+
+      cpu_stop = System.cpu_time
+      real_stop = Time.now.to_f
+
+      real_time = (real_stop - real_start) * 1000.0
+      cpu_time = cpu_stop - cpu_start
+
+      trans.increment("#{name}_real_time", real_time)
+      trans.increment("#{name}_cpu_time", cpu_time)
+      trans.increment("#{name}_call_count", 1)
+
+      retval
+    end
+
     # When enabled this should be set before being used as the usual pattern
     # "@foo ||= bar" is _not_ thread-safe.
     if enabled?
@@ -81,5 +115,11 @@ module Gitlab
           new(udp: { host: host, port: port })
       end
     end
+
+    private
+
+    def self.current_transaction
+      Transaction.current
+    end
   end
 end
diff --git a/lib/gitlab/metrics/metric.rb b/lib/gitlab/metrics/metric.rb
index 7ea9555cc8..1cd1ca30f7 100644
--- a/lib/gitlab/metrics/metric.rb
+++ b/lib/gitlab/metrics/metric.rb
@@ -2,6 +2,8 @@ module Gitlab
   module Metrics
     # Class for storing details of a single metric (label, value, etc).
     class Metric
+      JITTER_RANGE = 0.000001..0.001
+
       attr_reader :series, :values, :tags, :created_at
 
       # series - The name of the series (as a String) to store the metric in.
@@ -16,11 +18,29 @@ module Gitlab
 
       # Returns a Hash in a format that can be directly written to InfluxDB.
       def to_hash
+        # InfluxDB overwrites an existing point if a new point has the same
+        # series, tag set, and timestamp. In a highly concurrent environment
+        # this means that using the number of seconds since the Unix epoch is
+        # inevitably going to collide with another timestamp. For example, two
+        # Rails requests processed by different processes may end up generating
+        # metrics using the _exact_ same timestamp (in seconds).
+        #
+        # Due to the way InfluxDB is set up there's no solution to this problem,
+        # all we can do is lower the amount of collisions. We do this by using
+        # Time#to_f which returns the seconds as a Float providing greater
+        # accuracy. We then add a small random value that is large enough to
+        # distinguish most timestamps but small enough to not alter the amount
+        # of seconds.
+        #
+        # See https://gitlab.com/gitlab-com/operations/issues/175 for more
+        # information.
+        time = @created_at.to_f + rand(JITTER_RANGE)
+
         {
           series:    @series,
           tags:      @tags,
           values:    @values,
-          timestamp: @created_at.to_i * 1_000_000_000
+          timestamp: (time * 1_000_000_000).to_i
         }
       end
     end
diff --git a/lib/gitlab/metrics/subscribers/rails_cache.rb b/lib/gitlab/metrics/subscribers/rails_cache.rb
new file mode 100644
index 0000000000..49e5f86e6e
--- /dev/null
+++ b/lib/gitlab/metrics/subscribers/rails_cache.rb
@@ -0,0 +1,39 @@
+module Gitlab
+  module Metrics
+    module Subscribers
+      # Class for tracking the total time spent in Rails cache calls
+      class RailsCache < ActiveSupport::Subscriber
+        attach_to :active_support
+
+        def cache_read(event)
+          increment(:cache_read_duration, event.duration)
+        end
+
+        def cache_write(event)
+          increment(:cache_write_duration, event.duration)
+        end
+
+        def cache_delete(event)
+          increment(:cache_delete_duration, event.duration)
+        end
+
+        def cache_exist?(event)
+          increment(:cache_exists_duration, event.duration)
+        end
+
+        def increment(key, duration)
+          return unless current_transaction
+
+          current_transaction.increment(:cache_duration, duration)
+          current_transaction.increment(key, duration)
+        end
+
+        private
+
+        def current_transaction
+          Transaction.current
+        end
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/metrics/system.rb b/lib/gitlab/metrics/system.rb
index 8337126527..a7d183b2f9 100644
--- a/lib/gitlab/metrics/system.rb
+++ b/lib/gitlab/metrics/system.rb
@@ -30,6 +30,17 @@ module Gitlab
           0
         end
       end
+
+      # THREAD_CPUTIME is not supported on OS X
+      if Process.const_defined?(:CLOCK_THREAD_CPUTIME_ID)
+        def self.cpu_time
+          Process.clock_gettime(Process::CLOCK_THREAD_CPUTIME_ID, :millisecond)
+        end
+      else
+        def self.cpu_time
+          Process.clock_gettime(Process::CLOCK_PROCESS_CPUTIME_ID, :millisecond)
+        end
+      end
     end
   end
 end
diff --git a/lib/gitlab/redis.rb b/lib/gitlab/redis.rb
new file mode 100644
index 0000000000..319447669d
--- /dev/null
+++ b/lib/gitlab/redis.rb
@@ -0,0 +1,48 @@
+module Gitlab
+  class Redis
+    CACHE_NAMESPACE = 'cache:gitlab'
+
+    attr_reader :url
+
+    # To be thread-safe we must be careful when writing the class instance
+    # variables @url and @pool. Because @pool depends on @url we need two
+    # mutexes to prevent deadlock.
+    URL_MUTEX = Mutex.new
+    POOL_MUTEX = Mutex.new
+    private_constant :URL_MUTEX, :POOL_MUTEX
+
+    def self.url
+      @url || URL_MUTEX.synchronize { @url = new.url }
+    end
+
+    def self.with
+      if @pool.nil?
+        POOL_MUTEX.synchronize do
+          @pool = ConnectionPool.new { ::Redis.new(url: url) }
+        end
+      end
+      @pool.with { |redis| yield redis }
+    end
+    
+    def self.redis_store_options
+      url = new.url
+      redis_config_hash = ::Redis::Store::Factory.extract_host_options_from_uri(url)
+      # Redis::Store does not handle Unix sockets well, so let's do it for them
+      redis_uri = URI.parse(url)
+      if redis_uri.scheme == 'unix'
+        redis_config_hash[:path] = redis_uri.path
+      end
+      redis_config_hash
+    end
+
+    def initialize(rails_env=nil)
+      rails_env ||= Rails.env
+      config_file = File.expand_path('../../../config/resque.yml', __FILE__)
+  
+      @url = "redis://localhost:6379"
+      if File.exists?(config_file)
+        @url =YAML.load_file(config_file)[rails_env]
+      end
+    end
+  end
+end
diff --git a/lib/gitlab/redis_config.rb b/lib/gitlab/redis_config.rb
deleted file mode 100644
index 4949c6db53..0000000000
--- a/lib/gitlab/redis_config.rb
+++ /dev/null
@@ -1,30 +0,0 @@
-module Gitlab
-  class RedisConfig
-    attr_reader :url
-
-    def self.url
-      new.url
-    end
-    
-    def self.redis_store_options
-      url = new.url
-      redis_config_hash = Redis::Store::Factory.extract_host_options_from_uri(url)
-      # Redis::Store does not handle Unix sockets well, so let's do it for them
-      redis_uri = URI.parse(url)
-      if redis_uri.scheme == 'unix'
-        redis_config_hash[:path] = redis_uri.path
-      end
-      redis_config_hash
-    end
-
-    def initialize(rails_env=nil)
-      rails_env ||= Rails.env
-      config_file = File.expand_path('../../../config/resque.yml', __FILE__)
-  
-      @url = "redis://localhost:6379"
-      if File.exists?(config_file)
-        @url =YAML.load_file(config_file)[rails_env]
-      end
-    end
-  end
-end
diff --git a/lib/gitlab/saml/auth_hash.rb b/lib/gitlab/saml/auth_hash.rb
new file mode 100644
index 0000000000..32c1c9ec5b
--- /dev/null
+++ b/lib/gitlab/saml/auth_hash.rb
@@ -0,0 +1,19 @@
+module Gitlab
+  module Saml
+    class AuthHash < Gitlab::OAuth::AuthHash
+
+      def groups
+        get_raw(Gitlab::Saml::Config.groups)
+      end
+
+      private
+
+      def get_raw(key)
+        # Needs to call `all` because of https://git.io/vVo4u
+        # otherwise just the first value is returned
+        auth_hash.extra[:raw_info].all[key]
+      end
+
+    end
+  end
+end
diff --git a/lib/gitlab/saml/config.rb b/lib/gitlab/saml/config.rb
new file mode 100644
index 0000000000..0f40c00f54
--- /dev/null
+++ b/lib/gitlab/saml/config.rb
@@ -0,0 +1,21 @@
+module Gitlab
+  module Saml
+    class Config
+
+      class << self
+        def options
+          Gitlab.config.omniauth.providers.find { |provider| provider.name == 'saml' }
+        end
+
+        def groups
+          options[:groups_attribute]
+        end
+
+        def external_groups
+          options[:external_groups]
+        end
+      end
+
+    end
+  end
+end
diff --git a/lib/gitlab/saml/user.rb b/lib/gitlab/saml/user.rb
index b1e30110ef..dba4bbfc89 100644
--- a/lib/gitlab/saml/user.rb
+++ b/lib/gitlab/saml/user.rb
@@ -18,7 +18,7 @@ module Gitlab
           @user ||= find_or_create_ldap_user
         end
 
-        if auto_link_saml_enabled?
+        if auto_link_saml_user?
           @user ||= find_by_email
         end
 
@@ -26,6 +26,16 @@ module Gitlab
           @user ||= build_new_user
         end
 
+        if external_users_enabled? && @user
+          # Check if there is overlap between the user's groups and the external groups
+          # setting then set user as external or internal.
+          if (auth_hash.groups & Gitlab::Saml::Config.external_groups).empty?
+            @user.external = false
+          else
+            @user.external = true
+          end
+        end
+
         @user
       end
 
@@ -37,11 +47,24 @@ module Gitlab
         end
       end
 
+      def changed?
+        return true unless gl_user
+        gl_user.changed? || gl_user.identities.any?(&:changed?)
+      end
+
       protected
 
-      def auto_link_saml_enabled?
+      def auto_link_saml_user?
         Gitlab.config.omniauth.auto_link_saml_user
       end
+
+      def external_users_enabled?
+        !Gitlab::Saml::Config.external_groups.nil?
+      end
+
+      def auth_hash=(auth_hash)
+        @auth_hash = Gitlab::Saml::AuthHash.new(auth_hash)
+      end
     end
   end
 end
diff --git a/lib/tasks/cache.rake b/lib/tasks/cache.rake
index 51e746ef92..2214f85520 100644
--- a/lib/tasks/cache.rake
+++ b/lib/tasks/cache.rake
@@ -4,18 +4,19 @@ namespace :cache do
 
   desc "GitLab | Clear redis cache"
   task :clear => :environment do
-    redis = Redis.new(url: Gitlab::RedisConfig.url)
-    cursor = REDIS_SCAN_START_STOP
-    loop do
-      cursor, keys = redis.scan(
-        cursor,
-        match: "#{Gitlab::REDIS_CACHE_NAMESPACE}*", 
-        count: CLEAR_BATCH_SIZE
-      )
-
-      redis.del(*keys) if keys.any?
-
-      break if cursor == REDIS_SCAN_START_STOP
+    Gitlab::Redis.with do |redis|
+      cursor = REDIS_SCAN_START_STOP
+      loop do
+        cursor, keys = redis.scan(
+          cursor,
+          match: "#{Gitlab::Redis::CACHE_NAMESPACE}*", 
+          count: CLEAR_BATCH_SIZE
+        )
+  
+        redis.del(*keys) if keys.any?
+  
+        break if cursor == REDIS_SCAN_START_STOP
+      end
     end
   end
 end
diff --git a/spec/controllers/admin/projects_controller_spec.rb b/spec/controllers/admin/projects_controller_spec.rb
new file mode 100644
index 0000000000..2ba0d48919
--- /dev/null
+++ b/spec/controllers/admin/projects_controller_spec.rb
@@ -0,0 +1,23 @@
+require 'spec_helper'
+
+describe Admin::ProjectsController do
+  let!(:project) { create(:project, visibility_level: Gitlab::VisibilityLevel::PUBLIC) }
+
+  before do
+    sign_in(create(:admin))
+  end
+
+  describe 'GET /projects' do
+    render_views
+
+    it 'retrieves the project for the given visibility level' do
+      get :index, visibility_levels: [Gitlab::VisibilityLevel::PUBLIC]
+      expect(response.body).to match(project.name)
+    end
+
+    it 'does not retrieve the project' do
+      get :index, visibility_levels: [Gitlab::VisibilityLevel::INTERNAL]
+      expect(response.body).to_not match(project.name)
+    end
+  end
+end
diff --git a/spec/controllers/groups/milestones_controller_spec.rb b/spec/controllers/groups/milestones_controller_spec.rb
index eb0c6ac6d8..b0793cb165 100644
--- a/spec/controllers/groups/milestones_controller_spec.rb
+++ b/spec/controllers/groups/milestones_controller_spec.rb
@@ -23,5 +23,11 @@ describe Groups::MilestonesController do
       expect(response).to redirect_to(group_milestone_path(group, title.to_slug.to_s, title: title))
       expect(Milestone.where(title: title).count).to eq(2)
     end
+
+    it "redirects to new when there are no project ids" do
+      post :create, group_id: group.id, milestone: { title: title, project_ids: [""] }
+      expect(response).to render_template :new
+      expect(assigns(:milestone).errors).not_to be_nil
+    end
   end
 end
diff --git a/spec/controllers/projects/branches_controller_spec.rb b/spec/controllers/projects/branches_controller_spec.rb
index 98ae424ed7..8ad7347211 100644
--- a/spec/controllers/projects/branches_controller_spec.rb
+++ b/spec/controllers/projects/branches_controller_spec.rb
@@ -93,6 +93,20 @@ describe Projects::BranchesController do
     end
   end
 
+  describe "POST destroy with HTML format" do
+    render_views
+
+    it 'returns 303' do
+      post :destroy,
+           format: :html,
+           id: 'foo/bar/baz',
+           namespace_id: project.namespace.to_param,
+           project_id: project.to_param
+
+      expect(response.status).to eq(303)
+    end
+  end
+
   describe "POST destroy" do
     render_views
 
diff --git a/spec/controllers/sessions_controller_spec.rb b/spec/controllers/sessions_controller_spec.rb
new file mode 100644
index 0000000000..83cc8ec6d2
--- /dev/null
+++ b/spec/controllers/sessions_controller_spec.rb
@@ -0,0 +1,101 @@
+require 'spec_helper'
+
+describe SessionsController do
+  describe '#create' do
+    before do
+      @request.env['devise.mapping'] = Devise.mappings[:user]
+    end
+
+    context 'when using standard authentications' do
+      context 'invalid password' do
+        it 'does not authenticate user' do
+          post(:create, user: { login: 'invalid', password: 'invalid' })
+
+          expect(response)
+            .to set_flash.now[:alert].to /Invalid login or password/
+        end
+      end
+
+      context 'when using valid password' do
+        let(:user) { create(:user) }
+
+        it 'authenticates user correctly' do
+          post(:create, user: { login: user.username, password: user.password })
+
+          expect(response).to set_flash.to /Signed in successfully/
+          expect(subject.current_user). to eq user
+        end
+      end
+    end
+
+    context 'when using two-factor authentication' do
+      let(:user) { create(:user, :two_factor) }
+
+      def authenticate_2fa(user_params)
+        post(:create, { user: user_params }, { otp_user_id: user.id })
+      end
+
+      ##
+      # See #14900 issue
+      #
+      context 'when authenticating with login and OTP of another user' do
+        context 'when another user has 2FA enabled' do
+          let(:another_user) { create(:user, :two_factor) }
+
+          context 'when OTP is valid for another user' do
+            it 'does not authenticate' do
+              authenticate_2fa(login: another_user.username,
+                               otp_attempt: another_user.current_otp)
+
+              expect(subject.current_user).to_not eq another_user
+            end
+          end
+
+          context 'when OTP is invalid for another user' do
+            it 'does not authenticate' do
+              authenticate_2fa(login: another_user.username,
+                               otp_attempt: 'invalid')
+
+              expect(subject.current_user).to_not eq another_user
+            end
+          end
+
+          context 'when authenticating with OTP' do
+            context 'when OTP is valid' do
+              it 'authenticates correctly' do
+                authenticate_2fa(otp_attempt: user.current_otp)
+
+                expect(subject.current_user).to eq user
+              end
+            end
+
+            context 'when OTP is invalid' do
+              before { authenticate_2fa(otp_attempt: 'invalid') }
+
+              it 'does not authenticate' do
+                expect(subject.current_user).to_not eq user
+              end
+
+              it 'warns about invalid OTP code' do
+                expect(response).to set_flash.now[:alert]
+                  .to /Invalid two-factor code/
+              end
+            end
+          end
+
+          context 'when another user does not have 2FA enabled' do
+            let(:another_user) { create(:user) }
+
+            it 'does not leak that 2FA is disabled for another user' do
+              authenticate_2fa(login: another_user.username,
+                               otp_attempt: 'invalid')
+
+              expect(response).to set_flash.now[:alert]
+                .to /Invalid two-factor code/
+            end
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/spec/features/dashboard_issues_spec.rb b/spec/features/dashboard_issues_spec.rb
new file mode 100644
index 0000000000..39805da9d0
--- /dev/null
+++ b/spec/features/dashboard_issues_spec.rb
@@ -0,0 +1,54 @@
+require 'spec_helper'
+
+describe "Dashboard Issues filtering", feature: true, js: true do
+  let(:user)      { create(:user) }
+  let(:project)   { create(:project) }
+  let(:milestone) { create(:milestone, project: project) }
+
+  context 'filtering by milestone' do
+    before do
+      project.team << [user, :master]
+      login_as(user)
+
+      create(:issue, project: project, author: user, assignee: user)
+      create(:issue, project: project, author: user, assignee: user, milestone: milestone)
+
+      visit_issues
+    end
+
+    it 'should show all issues with no milestone' do
+      show_milestone_dropdown
+
+      click_link 'No Milestone'
+
+      expect(page).to have_selector('.issue', count: 1)
+    end
+
+    it 'should show all issues with any milestone' do
+      show_milestone_dropdown
+
+      click_link 'Any Milestone'
+
+      expect(page).to have_selector('.issue', count: 2)
+    end
+
+    it 'should show all issues with the selected milestone' do
+      show_milestone_dropdown
+
+      page.within '.dropdown-content' do
+        click_link milestone.title
+      end
+
+      expect(page).to have_selector('.issue', count: 1)
+    end
+  end
+
+  def show_milestone_dropdown
+    click_button 'Milestone'
+    expect(page).to have_selector('.dropdown-content', visible: true)
+  end
+
+  def visit_issues
+    visit issues_dashboard_path
+  end
+end
diff --git a/spec/features/issues/award_emoji_spec.rb b/spec/features/issues/award_emoji_spec.rb
new file mode 100644
index 0000000000..41af789aae
--- /dev/null
+++ b/spec/features/issues/award_emoji_spec.rb
@@ -0,0 +1,64 @@
+require 'rails_helper'
+
+describe 'Awards Emoji', feature: true do
+  let!(:project)   { create(:project) }
+  let!(:user)      { create(:user) }
+
+  before do
+    project.team << [user, :master]
+    login_as(user)
+  end
+
+  describe 'Click award emoji from issue#show' do
+    let!(:issue) do
+      create(:issue,
+             author: @user,
+             assignee: @user,
+             project: project)
+    end
+
+    before do
+      visit namespace_project_issue_path(project.namespace, project, issue)
+    end
+
+    it 'should increment the thumbsdown emoji', js: true do
+      find('[data-emoji="thumbsdown"]').click
+      sleep 2
+      expect(thumbsdown_emoji).to have_text("1")
+    end
+
+    context 'click the thumbsup emoji' do
+
+      it 'should increment the thumbsup emoji', js: true do
+        find('[data-emoji="thumbsup"]').click
+        sleep 2
+        expect(thumbsup_emoji).to have_text("1")
+      end
+
+      it 'should decrement the thumbsdown emoji', js: true do
+        expect(thumbsdown_emoji).to have_text("0")
+      end
+    end
+
+    context 'click the thumbsdown emoji' do
+
+      it 'should increment the thumbsdown emoji', js: true do
+        find('[data-emoji="thumbsdown"]').click
+        sleep 2
+        expect(thumbsdown_emoji).to have_text("1")
+      end
+
+      it 'should decrement the thumbsup emoji', js: true do
+        expect(thumbsup_emoji).to have_text("0")
+      end
+    end
+  end
+
+  def thumbsup_emoji
+    page.all('span.js-counter').first
+  end
+
+  def thumbsdown_emoji
+    page.all('span.js-counter').last
+  end
+end
diff --git a/spec/features/issues/filter_issues_spec.rb b/spec/features/issues/filter_issues_spec.rb
new file mode 100644
index 0000000000..90822a8c12
--- /dev/null
+++ b/spec/features/issues/filter_issues_spec.rb
@@ -0,0 +1,119 @@
+require 'rails_helper'
+
+describe 'Filter issues', feature: true do
+
+  let!(:project)   { create(:project) }
+  let!(:user)      { create(:user)}
+  let!(:milestone) { create(:milestone, project: project) }
+  let!(:label)     { create(:label, project: project) }
+
+  before do
+    project.team << [user, :master]
+    login_as(user)
+  end
+
+  describe 'Filter issues for assignee from issues#index' do
+
+    before do
+      visit namespace_project_issues_path(project.namespace, project)
+
+      find('.js-assignee-search').click
+
+      find('.dropdown-menu-user-link', text: user.username).click
+
+      sleep 2
+    end
+
+    context 'assignee', js: true do
+      it 'should update to current user' do
+        expect(find('.js-assignee-search .dropdown-toggle-text')).to have_content(user.name)
+      end
+
+      it 'should not change when closed link is clicked' do
+        find('.issues-state-filters a', text: "Closed").click
+
+        expect(find('.js-assignee-search .dropdown-toggle-text')).to have_content(user.name)
+      end
+
+
+      it 'should not change when all link is clicked' do
+        find('.issues-state-filters a', text: "All").click
+
+        expect(find('.js-assignee-search .dropdown-toggle-text')).to have_content(user.name)
+      end
+    end
+  end
+
+  describe 'Filter issues for milestone from issues#index' do
+
+    before do
+      visit namespace_project_issues_path(project.namespace, project)
+
+      find('.js-milestone-select').click
+
+      find('.milestone-filter .dropdown-content a', text: milestone.title).click
+
+      sleep 2
+    end
+
+    context 'milestone', js: true do
+      it 'should update to current milestone' do
+        expect(find('.js-milestone-select .dropdown-toggle-text')).to have_content(milestone.title)
+      end
+
+      it 'should not change when closed link is clicked' do
+        find('.issues-state-filters a', text: "Closed").click
+
+        expect(find('.js-milestone-select .dropdown-toggle-text')).to have_content(milestone.title)
+      end
+
+
+      it 'should not change when all link is clicked' do
+        find('.issues-state-filters a', text: "All").click
+
+        expect(find('.js-milestone-select .dropdown-toggle-text')).to have_content(milestone.title)
+      end
+    end
+  end
+
+  describe 'Filter issues for assignee and label from issues#index' do
+
+    before do
+      visit namespace_project_issues_path(project.namespace, project)
+
+      find('.js-assignee-search').click
+
+      find('.dropdown-menu-user-link', text: user.username).click
+
+      sleep 2
+
+      find('.js-label-select').click
+
+      find('.dropdown-menu-labels .dropdown-content a', text: label.title).click
+
+      sleep 2
+    end
+
+    context 'assignee and label', js: true do
+      it 'should update to current assignee and label' do
+        expect(find('.js-assignee-search .dropdown-toggle-text')).to have_content(user.name)
+        expect(find('.js-label-select .dropdown-toggle-text')).to have_content(label.title)
+      end
+
+      it 'should not change when closed link is clicked' do
+        find('.issues-state-filters a', text: "Closed").click
+
+        expect(find('.js-assignee-search .dropdown-toggle-text')).to have_content(user.name)
+        expect(find('.js-label-select .dropdown-toggle-text')).to have_content(label.title)
+      end
+
+
+      it 'should not change when all link is clicked' do
+        find('.issues-state-filters a', text: "All").click
+
+        expect(find('.js-assignee-search .dropdown-toggle-text')).to have_content(user.name)
+        expect(find('.js-label-select .dropdown-toggle-text')).to have_content(label.title)
+      end
+    end
+  end
+end
diff --git a/spec/features/markdown_spec.rb b/spec/features/markdown_spec.rb
index 12fd8d3721..3d0d0e59fd 100644
--- a/spec/features/markdown_spec.rb
+++ b/spec/features/markdown_spec.rb
@@ -39,7 +39,7 @@ describe 'GitLab Markdown', feature: true do
   end
 
   def doc(html = @html)
-    Nokogiri::HTML::DocumentFragment.parse(html)
+    @doc ||= Nokogiri::HTML::DocumentFragment.parse(html)
   end
 
   # Shared behavior that all pipelines should exhibit
@@ -230,6 +230,7 @@ describe 'GitLab Markdown', feature: true do
       file = Gollum::File.new(@project_wiki.wiki)
       expect(file).to receive(:path).and_return('images/example.jpg')
       expect(@project_wiki).to receive(:find_file).with('images/example.jpg').and_return(file)
+      allow(@project_wiki).to receive(:wiki_base_path) { '/namespace1/gitlabhq/wikis' }
 
       @html = markdown(@feat.raw_markdown, { pipeline: :wiki, project_wiki: @project_wiki })
     end
diff --git a/spec/features/merge_requests/create_new_mr_spec.rb b/spec/features/merge_requests/create_new_mr_spec.rb
index fd02d58484..00b60bd0e7 100644
--- a/spec/features/merge_requests/create_new_mr_spec.rb
+++ b/spec/features/merge_requests/create_new_mr_spec.rb
@@ -1,6 +1,6 @@
 require 'spec_helper'
 
-feature 'Create New Merge Request', feature: true, js: false do
+feature 'Create New Merge Request', feature: true, js: true do
   let(:user) { create(:user) }
   let(:project) { create(:project, :public) }
 
@@ -13,9 +13,12 @@ feature 'Create New Merge Request', feature: true, js: false do
 
   it 'generates a diff for an orphaned branch' do
     click_link 'New Merge Request'
-    select "orphaned-branch", from: "merge_request_source_branch"
-    select "master", from: "merge_request_target_branch"
+
+    first('.js-source-branch').click
+    first('.dropdown-source-branch .dropdown-content a', text: 'orphaned-branch').click
+
     click_button "Compare branches"
+    click_link "Changes"
 
     expect(page).to have_content "README.md"
     expect(page).to have_content "wm.png"
@@ -23,6 +26,8 @@ feature 'Create New Merge Request', feature: true, js: false do
     fill_in "merge_request_title", with: "Orphaned MR test"
     click_button "Submit merge request"
 
+    click_link "Check out branch"
+
     expect(page).to have_content 'git checkout -b orphaned-branch origin/orphaned-branch'
   end
 end
diff --git a/spec/features/notes_on_merge_requests_spec.rb b/spec/features/notes_on_merge_requests_spec.rb
index 70d0864783..5f855ccc70 100644
--- a/spec/features/notes_on_merge_requests_spec.rb
+++ b/spec/features/notes_on_merge_requests_spec.rb
@@ -210,7 +210,7 @@ describe 'Comments', feature: true do
           is_expected.to have_content('Another comment on line 10')
           is_expected.to have_css('.notes_holder')
           is_expected.to have_css('.notes_holder .note', count: 1)
-          is_expected.to have_button('Reply')
+          is_expected.to have_button('Reply...')
         end
       end
     end
diff --git a/spec/features/projects/badges/list_spec.rb b/spec/features/projects/badges/list_spec.rb
new file mode 100644
index 0000000000..13c9b95b31
--- /dev/null
+++ b/spec/features/projects/badges/list_spec.rb
@@ -0,0 +1,34 @@
+require 'spec_helper'
+
+feature 'list of badges' do
+  include Select2Helper
+
+  background do
+    user = create(:user)
+    project = create(:project)
+    project.team << [user, :master]
+    login_as(user)
+    visit edit_namespace_project_path(project.namespace, project)
+  end
+
+  scenario 'user displays list of badges' do
+    click_link 'Badges'
+
+    expect(page).to have_content 'build status'
+    expect(page).to have_content 'Markdown'
+    expect(page).to have_content 'HTML'
+    expect(page).to have_css('.highlight', count: 2)
+    expect(page).to have_xpath("//img[@alt='build status']")
+
+    page.within('.highlight', match: :first) do
+      expect(page).to have_content 'badges/master/build.svg'
+    end
+  end
+
+  scenario 'user changes current ref on badges list page', js: true do
+    click_link 'Badges'
+    select2('improve/awesome', from: '#ref')
+
+    expect(page).to have_content 'badges/improve/awesome/build.svg'
+  end
+end
diff --git a/spec/helpers/form_helper_spec.rb b/spec/helpers/form_helper_spec.rb
new file mode 100644
index 0000000000..b20373a96f
--- /dev/null
+++ b/spec/helpers/form_helper_spec.rb
@@ -0,0 +1,46 @@
+require 'rails_helper'
+
+describe FormHelper do
+  describe 'form_errors' do
+    it 'returns nil when model has no errors' do
+      model = double(errors: [])
+
+      expect(helper.form_errors(model)).to be_nil
+    end
+
+    it 'renders an alert div' do
+      model = double(errors: errors_stub('Error 1'))
+
+      expect(helper.form_errors(model)).
+        to include('<div class="alert alert-danger" id="error_explanation">')
+    end
+
+    it 'contains a summary message' do
+      single_error = double(errors: errors_stub('A'))
+      multi_errors = double(errors: errors_stub('A', 'B', 'C'))
+
+      expect(helper.form_errors(single_error)).
+        to include('<h4>The form contains the following error:')
+      expect(helper.form_errors(multi_errors)).
+        to include('<h4>The form contains the following errors:')
+    end
+
+    it 'renders each message' do
+      model = double(errors: errors_stub('Error 1', 'Error 2', 'Error 3'))
+
+      errors = helper.form_errors(model)
+
+      aggregate_failures do
+        expect(errors).to include('<li>Error 1</li>')
+        expect(errors).to include('<li>Error 2</li>')
+        expect(errors).to include('<li>Error 3</li>')
+      end
+    end
+
+    def errors_stub(*messages)
+      ActiveModel::Errors.new(double).tap do |errors|
+        messages.each { |msg| errors.add(:base, msg) }
+      end
+    end
+  end
+end
diff --git a/spec/helpers/gitlab_markdown_helper_spec.rb b/spec/helpers/gitlab_markdown_helper_spec.rb
index 9adcd916ce..13de88e2f2 100644
--- a/spec/helpers/gitlab_markdown_helper_spec.rb
+++ b/spec/helpers/gitlab_markdown_helper_spec.rb
@@ -150,13 +150,6 @@ describe GitlabMarkdownHelper do
     end
   end
 
-  describe 'random_markdown_tip' do
-    it 'returns a random Markdown tip' do
-      stub_const("#{described_class}::MARKDOWN_TIPS", ['Random tip'])
-      expect(random_markdown_tip).to eq 'Random tip'
-    end
-  end
-
   describe '#first_line_in_markdown' do
     let(:text) { "@#{user.username}, can you look at this?\nHello world\n"}
 
diff --git a/spec/helpers/issues_helper_spec.rb b/spec/helpers/issues_helper_spec.rb
index ffd8ebae02..543593cf38 100644
--- a/spec/helpers/issues_helper_spec.rb
+++ b/spec/helpers/issues_helper_spec.rb
@@ -80,7 +80,7 @@ describe IssuesHelper do
     end
   end
 
-  describe '#url_for_new_issue' do
+  describe 'url_for_new_issue' do
     let(:issues_url) { ext_project.external_issue_tracker.new_issue_url }
     let(:ext_expected) do
       issues_url.gsub(':project_id', ext_project.id.to_s)
@@ -117,7 +117,7 @@ describe IssuesHelper do
     end
   end
 
-  describe "#merge_requests_sentence" do
+  describe "merge_requests_sentence" do
     subject { merge_requests_sentence(merge_requests)}
     let(:merge_requests) do
       [ build(:merge_request, iid: 1), build(:merge_request, iid: 2),
@@ -127,7 +127,7 @@ describe IssuesHelper do
     it { is_expected.to eq("!1, !2, or !3") }
   end
 
-  describe "#note_active_class" do
+  describe "note_active_class" do
     before do
       @note = create :note
       @note1 = create :note
@@ -142,10 +142,25 @@ describe IssuesHelper do
     end
   end
 
-  describe "#awards_sort" do
+  describe "awards_sort" do
     it "sorts a hash so thumbsup and thumbsdown are always on top" do
       data = { "thumbsdown" => "some value", "lifter" => "some value", "thumbsup" => "some value" }
       expect(awards_sort(data).keys).to eq(["thumbsup", "thumbsdown", "lifter"])
     end
   end
+
+  describe "milestone_options" do
+    it "gets closed milestone from current issue" do
+      closed_milestone = create(:closed_milestone, project: project)
+      milestone1       = create(:milestone, project: project)
+      milestone2       = create(:milestone, project: project)
+      issue.update_attributes(milestone_id: closed_milestone.id)
+
+      options = milestone_options(issue)
+
+      expect(options).to have_selector('option[selected]', text: closed_milestone.title)
+      expect(options).to have_selector('option', text: milestone1.title)
+      expect(options).to have_selector('option', text: milestone2.title)
+    end
+  end
 end
diff --git a/spec/lib/banzai/filter/gollum_tags_filter_spec.rb b/spec/lib/banzai/filter/gollum_tags_filter_spec.rb
index 5e23c5c319..fe2ce092e6 100644
--- a/spec/lib/banzai/filter/gollum_tags_filter_spec.rb
+++ b/spec/lib/banzai/filter/gollum_tags_filter_spec.rb
@@ -70,20 +70,22 @@ describe Banzai::Filter::GollumTagsFilter, lib: true do
   end
 
   context 'linking internal resources' do
-    it "the created link's text will be equal to the resource's text" do
+    it "the created link's text includes the resource's text and wiki base path" do
       tag = '[[wiki-slug]]'
       doc = filter("See #{tag}", project_wiki: project_wiki)
+      expected_path = ::File.join(project_wiki.wiki_base_path, 'wiki-slug')
 
       expect(doc.at_css('a').text).to eq 'wiki-slug'
-      expect(doc.at_css('a')['href']).to eq 'wiki-slug'
+      expect(doc.at_css('a')['href']).to eq expected_path
     end
 
     it "the created link's text will be link-text" do
       tag = '[[link-text|wiki-slug]]'
       doc = filter("See #{tag}", project_wiki: project_wiki)
+      expected_path = ::File.join(project_wiki.wiki_base_path, 'wiki-slug')
 
       expect(doc.at_css('a').text).to eq 'link-text'
-      expect(doc.at_css('a')['href']).to eq 'wiki-slug'
+      expect(doc.at_css('a')['href']).to eq expected_path
     end
   end
 
diff --git a/spec/lib/banzai/filter/issue_reference_filter_spec.rb b/spec/lib/banzai/filter/issue_reference_filter_spec.rb
index 5a0d3d577a..266ebef33d 100644
--- a/spec/lib/banzai/filter/issue_reference_filter_spec.rb
+++ b/spec/lib/banzai/filter/issue_reference_filter_spec.rb
@@ -95,6 +95,14 @@ describe Banzai::Filter::IssueReferenceFilter, lib: true do
       result = reference_pipeline_result("Fixed #{reference}")
       expect(result[:references][:issue]).to eq [issue]
     end
+
+    it 'does not process links containing issue numbers followed by text' do
+      href = "#{reference}st"
+      doc = reference_filter("<a href='#{href}'></a>")
+      link = doc.css('a').first.attr('href')
+
+      expect(link).to eq(href)
+    end
   end
 
   context 'cross-project reference' do
diff --git a/spec/lib/banzai/pipeline/wiki_pipeline_spec.rb b/spec/lib/banzai/pipeline/wiki_pipeline_spec.rb
index 3e25406e49..7aa1b4a3bf 100644
--- a/spec/lib/banzai/pipeline/wiki_pipeline_spec.rb
+++ b/spec/lib/banzai/pipeline/wiki_pipeline_spec.rb
@@ -11,7 +11,7 @@ describe Banzai::Pipeline::WikiPipeline do
           Foo
       MD
 
-      result = described_class.call(markdown, project: spy, project_wiki: double)
+      result = described_class.call(markdown, project: spy, project_wiki: spy)
 
       aggregate_failures do
         expect(result[:output].text).not_to include '[['
@@ -29,7 +29,7 @@ describe Banzai::Pipeline::WikiPipeline do
           Foo
       MD
 
-      output = described_class.to_html(markdown, project: spy, project_wiki: double)
+      output = described_class.to_html(markdown, project: spy, project_wiki: spy)
 
       expect(output).to include('[[<em>toc</em>]]')
     end
@@ -42,7 +42,7 @@ describe Banzai::Pipeline::WikiPipeline do
           Foo
       MD
 
-      output = described_class.to_html(markdown, project: spy, project_wiki: double)
+      output = described_class.to_html(markdown, project: spy, project_wiki: spy)
 
       aggregate_failures do
         expect(output).not_to include('<ul>')
diff --git a/spec/lib/gitlab/badge/build_spec.rb b/spec/lib/gitlab/badge/build_spec.rb
index b78c2b6224..329792bb68 100644
--- a/spec/lib/gitlab/badge/build_spec.rb
+++ b/spec/lib/gitlab/badge/build_spec.rb
@@ -3,13 +3,44 @@ require 'spec_helper'
 describe Gitlab::Badge::Build do
   let(:project) { create(:project) }
   let(:sha) { project.commit.sha }
-  let(:badge) { described_class.new(project, 'master') }
+  let(:branch) { 'master' }
+  let(:badge) { described_class.new(project, branch) }
 
   describe '#type' do
     subject { badge.type }
     it { is_expected.to eq 'image/svg+xml' }
   end
 
+  describe '#to_html' do
+    let(:html) { Nokogiri::HTML.parse(badge.to_html) }
+    let(:a_href) { html.at('a') }
+
+    it 'points to link' do
+      expect(a_href[:href]).to eq badge.link_url
+    end
+
+    it 'contains clickable image' do
+      expect(a_href.children.first.name).to eq 'img'
+    end
+  end
+
+  describe '#to_markdown' do
+    subject { badge.to_markdown }
+
+    it { is_expected.to include badge.image_url }
+    it { is_expected.to include badge.link_url }
+  end
+
+  describe '#image_url' do
+    subject { badge.image_url }
+    it { is_expected.to include "badges/#{branch}/build.svg" }
+  end
+
+  describe '#link_url' do
+    subject { badge.link_url }
+    it { is_expected.to include "commits/#{branch}" }
+  end
+
   context 'build exists' do
     let(:ci_commit) { create(:ci_commit, project: project, sha: sha) }
     let!(:build) { create(:ci_build, commit: ci_commit) }
diff --git a/spec/lib/gitlab/closing_issue_extractor_spec.rb b/spec/lib/gitlab/closing_issue_extractor_spec.rb
index a1f51429a7..e9b8ce6b5b 100644
--- a/spec/lib/gitlab/closing_issue_extractor_spec.rb
+++ b/spec/lib/gitlab/closing_issue_extractor_spec.rb
@@ -22,11 +22,21 @@ describe Gitlab::ClosingIssueExtractor, lib: true do
         expect(subject.closed_by_message(message)).to eq([issue])
       end
 
+      it do
+        message = "Awesome commit (Closes: #{reference})"
+        expect(subject.closed_by_message(message)).to eq([issue])
+      end
+
       it do
         message = "Awesome commit (closes #{reference})"
         expect(subject.closed_by_message(message)).to eq([issue])
       end
 
+      it do
+        message = "Awesome commit (closes: #{reference})"
+        expect(subject.closed_by_message(message)).to eq([issue])
+      end
+
       it do
         message = "Closed #{reference}"
         expect(subject.closed_by_message(message)).to eq([issue])
@@ -37,106 +47,211 @@ describe Gitlab::ClosingIssueExtractor, lib: true do
         expect(subject.closed_by_message(message)).to eq([issue])
       end
 
+      it do
+        message = "closed: #{reference}"
+        expect(subject.closed_by_message(message)).to eq([issue])
+      end
+
       it do
         message = "Closing #{reference}"
         expect(subject.closed_by_message(message)).to eq([issue])
       end
 
+      it do
+        message = "Closing: #{reference}"
+        expect(subject.closed_by_message(message)).to eq([issue])
+      end
+
       it do
         message = "closing #{reference}"
         expect(subject.closed_by_message(message)).to eq([issue])
       end
 
+      it do
+        message = "closing: #{reference}"
+        expect(subject.closed_by_message(message)).to eq([issue])
+      end
+
       it do
         message = "Close #{reference}"
         expect(subject.closed_by_message(message)).to eq([issue])
       end
 
+      it do
+        message = "Close: #{reference}"
+        expect(subject.closed_by_message(message)).to eq([issue])
+      end
+
       it do
         message = "close #{reference}"
         expect(subject.closed_by_message(message)).to eq([issue])
       end
 
+      it do
+        message = "close: #{reference}"
+        expect(subject.closed_by_message(message)).to eq([issue])
+      end
+
       it do
         message = "Awesome commit (Fixes #{reference})"
         expect(subject.closed_by_message(message)).to eq([issue])
       end
 
+      it do
+        message = "Awesome commit (Fixes: #{reference})"
+        expect(subject.closed_by_message(message)).to eq([issue])
+      end
+
       it do
         message = "Awesome commit (fixes #{reference})"
         expect(subject.closed_by_message(message)).to eq([issue])
       end
 
+      it do
+        message = "Awesome commit (Fixes: #{reference})"
+        expect(subject.closed_by_message(message)).to eq([issue])
+      end
+
       it do
         message = "Fixed #{reference}"
         expect(subject.closed_by_message(message)).to eq([issue])
       end
 
+      it do
+        message = "Fixed: #{reference}"
+        expect(subject.closed_by_message(message)).to eq([issue])
+      end
+
       it do
         message = "fixed #{reference}"
         expect(subject.closed_by_message(message)).to eq([issue])
       end
 
+      it do
+        message = "fixed: #{reference}"
+        expect(subject.closed_by_message(message)).to eq([issue])
+      end
+
       it do
         message = "Fixing #{reference}"
         expect(subject.closed_by_message(message)).to eq([issue])
       end
 
+      it do
+        message = "Fixing: #{reference}"
+        expect(subject.closed_by_message(message)).to eq([issue])
+      end
+
       it do
         message = "fixing #{reference}"
         expect(subject.closed_by_message(message)).to eq([issue])
       end
 
+      it do
+        message = "fixing: #{reference}"
+        expect(subject.closed_by_message(message)).to eq([issue])
+      end
+
       it do
         message = "Fix #{reference}"
         expect(subject.closed_by_message(message)).to eq([issue])
       end
 
+      it do
+        message = "Fix: #{reference}"
+        expect(subject.closed_by_message(message)).to eq([issue])
+      end
+
       it do
         message = "fix #{reference}"
         expect(subject.closed_by_message(message)).to eq([issue])
       end
 
+      it do
+        message = "fix: #{reference}"
+        expect(subject.closed_by_message(message)).to eq([issue])
+      end
+
       it do
         message = "Awesome commit (Resolves #{reference})"
         expect(subject.closed_by_message(message)).to eq([issue])
       end
 
+      it do
+        message = "Awesome commit (Resolves: #{reference})"
+        expect(subject.closed_by_message(message)).to eq([issue])
+      end
+
       it do
         message = "Awesome commit (resolves #{reference})"
         expect(subject.closed_by_message(message)).to eq([issue])
       end
 
+      it do
+        message = "Awesome commit (resolves: #{reference})"
+        expect(subject.closed_by_message(message)).to eq([issue])
+      end
+
       it do
         message = "Resolved #{reference}"
         expect(subject.closed_by_message(message)).to eq([issue])
       end
 
+      it do
+        message = "Resolved: #{reference}"
+        expect(subject.closed_by_message(message)).to eq([issue])
+      end
+
       it do
         message = "resolved #{reference}"
         expect(subject.closed_by_message(message)).to eq([issue])
       end
 
+      it do
+        message = "resolved: #{reference}"
+        expect(subject.closed_by_message(message)).to eq([issue])
+      end
+
       it do
         message = "Resolving #{reference}"
         expect(subject.closed_by_message(message)).to eq([issue])
       end
 
+      it do
+        message = "Resolving: #{reference}"
+        expect(subject.closed_by_message(message)).to eq([issue])
+      end
+
       it do
         message = "resolving #{reference}"
         expect(subject.closed_by_message(message)).to eq([issue])
       end
 
+      it do
+        message = "resolving: #{reference}"
+        expect(subject.closed_by_message(message)).to eq([issue])
+      end
+
       it do
         message = "Resolve #{reference}"
         expect(subject.closed_by_message(message)).to eq([issue])
       end
 
+      it do
+        message = "Resolve: #{reference}"
+        expect(subject.closed_by_message(message)).to eq([issue])
+      end
+
       it do
         message = "resolve #{reference}"
         expect(subject.closed_by_message(message)).to eq([issue])
       end
 
+      it do
+        message = "resolve: #{reference}"
+        expect(subject.closed_by_message(message)).to eq([issue])
+      end
+
       context 'with an external issue tracker reference' do
         it 'extracts the referenced issue' do
           jira_project = create(:jira_project, name: 'JIRA_EXT1')
diff --git a/spec/lib/gitlab/ldap/access_spec.rb b/spec/lib/gitlab/ldap/access_spec.rb
index 32a19bf344..f5b66b8156 100644
--- a/spec/lib/gitlab/ldap/access_spec.rb
+++ b/spec/lib/gitlab/ldap/access_spec.rb
@@ -33,7 +33,7 @@ describe Gitlab::LDAP::Access, lib: true do
 
         it { is_expected.to be_falsey }
 
-        it 'should block user in GitLab' do
+        it 'blocks user in GitLab' do
           access.allowed?
           expect(user).to be_blocked
           expect(user).to be_ldap_blocked
@@ -78,6 +78,31 @@ describe Gitlab::LDAP::Access, lib: true do
         end
 
         it { is_expected.to be_truthy }
+
+        context 'when user cannot be found' do
+          before do
+            allow(Gitlab::LDAP::Person).to receive(:find_by_dn).and_return(nil)
+          end
+
+          it { is_expected.to be_falsey }
+
+          it 'blocks user in GitLab' do
+            access.allowed?
+            expect(user).to be_blocked
+            expect(user).to be_ldap_blocked
+          end
+        end
+
+        context 'when user was previously ldap_blocked' do
+          before do
+            user.ldap_block
+          end
+
+          it 'unblocks the user if it exists' do
+            access.allowed?
+            expect(user).not_to be_blocked
+          end
+        end
       end
     end
   end
diff --git a/spec/lib/gitlab/metrics/subscribers/rails_cache_spec.rb b/spec/lib/gitlab/metrics/subscribers/rails_cache_spec.rb
new file mode 100644
index 0000000000..e01b0b4bd2
--- /dev/null
+++ b/spec/lib/gitlab/metrics/subscribers/rails_cache_spec.rb
@@ -0,0 +1,71 @@
+require 'spec_helper'
+
+describe Gitlab::Metrics::Subscribers::RailsCache do
+  let(:transaction) { Gitlab::Metrics::Transaction.new }
+  let(:subscriber) { described_class.new }
+
+  let(:event) { double(:event, duration: 15.2) }
+
+  describe '#cache_read' do
+    it 'increments the cache_read duration' do
+      expect(subscriber).to receive(:increment).
+        with(:cache_read_duration, event.duration)
+
+      subscriber.cache_read(event)
+    end
+  end
+
+  describe '#cache_write' do
+    it 'increments the cache_write duration' do
+      expect(subscriber).to receive(:increment).
+        with(:cache_write_duration, event.duration)
+
+      subscriber.cache_write(event)
+    end
+  end
+
+  describe '#cache_delete' do
+    it 'increments the cache_delete duration' do
+      expect(subscriber).to receive(:increment).
+        with(:cache_delete_duration, event.duration)
+
+      subscriber.cache_delete(event)
+    end
+  end
+
+  describe '#cache_exist?' do
+    it 'increments the cache_exists duration' do
+      expect(subscriber).to receive(:increment).
+        with(:cache_exists_duration, event.duration)
+
+      subscriber.cache_exist?(event)
+    end
+  end
+
+  describe '#increment' do
+    context 'without a transaction' do
+      it 'returns' do
+        expect(transaction).not_to receive(:increment)
+
+        subscriber.increment(:foo, 15.2)
+      end
+    end
+
+    context 'with a transaction' do
+      before do
+        allow(subscriber).to receive(:current_transaction).
+          and_return(transaction)
+      end
+
+      it 'increments the total and specific cache duration' do
+        expect(transaction).to receive(:increment).
+          with(:cache_duration, event.duration)
+
+        expect(transaction).to receive(:increment).
+          with(:cache_delete_duration, event.duration)
+
+        subscriber.increment(:cache_delete_duration, event.duration)
+      end
+    end
+  end
+end
diff --git a/spec/lib/gitlab/metrics/system_spec.rb b/spec/lib/gitlab/metrics/system_spec.rb
index f8c1d956ca..d6ae54e25e 100644
--- a/spec/lib/gitlab/metrics/system_spec.rb
+++ b/spec/lib/gitlab/metrics/system_spec.rb
@@ -26,4 +26,10 @@ describe Gitlab::Metrics::System do
       end
     end
   end
+
+  describe '.cpu_time' do
+    it 'returns a Fixnum' do
+      expect(described_class.cpu_time).to be_an_instance_of(Fixnum)
+    end
+  end
 end
diff --git a/spec/lib/gitlab/metrics_spec.rb b/spec/lib/gitlab/metrics_spec.rb
index 0ec8a6dc5c..3dee13e27f 100644
--- a/spec/lib/gitlab/metrics_spec.rb
+++ b/spec/lib/gitlab/metrics_spec.rb
@@ -13,7 +13,7 @@ describe Gitlab::Metrics do
     end
   end
 
-  describe '#submit_metrics' do
+  describe '.submit_metrics' do
     it 'prepares and writes the metrics to InfluxDB' do
       connection = double(:connection)
       pool       = double(:pool)
@@ -26,7 +26,7 @@ describe Gitlab::Metrics do
     end
   end
 
-  describe '#prepare_metrics' do
+  describe '.prepare_metrics' do
     it 'returns a Hash with the keys as Symbols' do
       metrics = described_class.
         prepare_metrics([{ 'values' => {}, 'tags' => {} }])
@@ -51,7 +51,7 @@ describe Gitlab::Metrics do
     end
   end
 
-  describe '#escape_value' do
+  describe '.escape_value' do
     it 'escapes an equals sign' do
       expect(described_class.escape_value('foo=')).to eq('foo\\=')
     end
@@ -60,4 +60,42 @@ describe Gitlab::Metrics do
       expect(described_class.escape_value(10)).to eq('10')
     end
   end
+
+  describe '.measure' do
+    context 'without a transaction' do
+      it 'returns the return value of the block' do
+        val = Gitlab::Metrics.measure(:foo) { 10 }
+
+        expect(val).to eq(10)
+      end
+    end
+
+    context 'with a transaction' do
+      let(:transaction) { Gitlab::Metrics::Transaction.new }
+
+      before do
+        allow(Gitlab::Metrics).to receive(:current_transaction).
+          and_return(transaction)
+      end
+
+      it 'adds a metric to the current transaction' do
+        expect(transaction).to receive(:increment).
+          with('foo_real_time', a_kind_of(Numeric))
+
+        expect(transaction).to receive(:increment).
+          with('foo_cpu_time', a_kind_of(Numeric))
+
+        expect(transaction).to receive(:increment).
+          with('foo_call_count', 1)
+
+        Gitlab::Metrics.measure(:foo) { 10 }
+      end
+
+      it 'returns the return value of the block' do
+        val = Gitlab::Metrics.measure(:foo) { 10 }
+
+        expect(val).to eq(10)
+      end
+    end
+  end
 end
diff --git a/spec/lib/gitlab/saml/user_spec.rb b/spec/lib/gitlab/saml/user_spec.rb
index de7cd99d49..c2a51d9249 100644
--- a/spec/lib/gitlab/saml/user_spec.rb
+++ b/spec/lib/gitlab/saml/user_spec.rb
@@ -5,7 +5,7 @@ describe Gitlab::Saml::User, lib: true do
   let(:gl_user) { saml_user.gl_user }
   let(:uid) { 'my-uid' }
   let(:provider) { 'saml' }
-  let(:auth_hash) { OmniAuth::AuthHash.new(uid: uid, provider: provider, info: info_hash) }
+  let(:auth_hash) { OmniAuth::AuthHash.new(uid: uid, provider: provider, info: info_hash, extra: { raw_info: OneLogin::RubySaml::Attributes.new({ 'groups' => %w(Developers Freelancers Designers) }) }) }
   let(:info_hash) do
     {
       name: 'John',
@@ -23,10 +23,20 @@ describe Gitlab::Saml::User, lib: true do
       allow(Gitlab::LDAP::Config).to receive_messages(messages)
     end
 
+    def stub_basic_saml_config
+      allow(Gitlab::Saml::Config).to receive_messages({ options: { name: 'saml', args: {} } })
+    end
+
+    def stub_saml_group_config(groups)
+      allow(Gitlab::Saml::Config).to receive_messages({ options: { name: 'saml', groups_attribute: 'groups', external_groups: groups, args: {} } })
+    end
+
+    before { stub_basic_saml_config }
+
     describe 'account exists on server' do
       before { stub_omniauth_config({ allow_single_sign_on: ['saml'], auto_link_saml_user: true }) }
+      let!(:existing_user) { create(:user, email: 'john@mail.com', username: 'john') }
       context 'and should bind with SAML' do
-        let!(:existing_user) { create(:user, email: 'john@mail.com', username: 'john') }
         it 'adds the SAML identity to the existing user' do
           saml_user.save
           expect(gl_user).to be_valid
@@ -36,6 +46,35 @@ describe Gitlab::Saml::User, lib: true do
           expect(identity.provider).to eql 'saml'
         end
       end
+
+      context 'external groups' do
+        context 'are defined' do
+          it 'marks the user as external' do
+            stub_saml_group_config(%w(Freelancers))
+            saml_user.save
+            expect(gl_user).to be_valid
+            expect(gl_user.external).to be_truthy
+          end
+        end
+
+        before { stub_saml_group_config(%w(Interns)) }
+        context 'are defined but the user does not belong there' do
+          it 'does not mark the user as external' do
+            saml_user.save
+            expect(gl_user).to be_valid
+            expect(gl_user.external).to be_falsey
+          end
+        end
+
+        context 'user was external, now should not be' do
+          it 'should make user internal' do
+            existing_user.update_attribute('external', true)
+            saml_user.save
+            expect(gl_user).to be_valid
+            expect(gl_user.external).to be_falsey
+          end
+        end
+      end
     end
 
     describe 'no account exists on server' do
@@ -68,6 +107,26 @@ describe Gitlab::Saml::User, lib: true do
         end
       end
 
+      context 'external groups' do
+        context 'are defined' do
+          it 'marks the user as external' do
+            stub_saml_group_config(%w(Freelancers))
+            saml_user.save
+            expect(gl_user).to be_valid
+            expect(gl_user.external).to be_truthy
+          end
+        end
+
+        context 'are defined but the user does not belong there' do
+          it 'does not mark the user as external' do
+            stub_saml_group_config(%w(Interns))
+            saml_user.save
+            expect(gl_user).to be_valid
+            expect(gl_user.external).to be_falsey
+          end
+        end
+      end
+
       context 'with auto_link_ldap_user disabled (default)' do
         before { stub_omniauth_config({ auto_link_ldap_user: false, auto_link_saml_user: false, allow_single_sign_on: ['saml'] }) }
         include_examples 'to verify compliance with allow_single_sign_on'
@@ -76,12 +135,6 @@ describe Gitlab::Saml::User, lib: true do
       context 'with auto_link_ldap_user enabled' do
         before { stub_omniauth_config({ auto_link_ldap_user: true, auto_link_saml_user: false }) }
 
-        context 'and no LDAP provider defined' do
-          before { stub_ldap_config(providers: []) }
-
-          include_examples 'to verify compliance with allow_single_sign_on'
-        end
-
         context 'and at least one LDAP provider is defined' do
           before { stub_ldap_config(providers: %w(ldapmain)) }
 
@@ -89,19 +142,18 @@ describe Gitlab::Saml::User, lib: true do
             before do
               allow(ldap_user).to receive(:uid) { uid }
               allow(ldap_user).to receive(:username) { uid }
-              allow(ldap_user).to receive(:email) { ['johndoe@example.com','john2@example.com'] }
+              allow(ldap_user).to receive(:email) { %w(john@mail.com john2@example.com) }
               allow(ldap_user).to receive(:dn) { 'uid=user1,ou=People,dc=example' }
               allow(Gitlab::LDAP::Person).to receive(:find_by_uid).and_return(ldap_user)
             end
 
             context 'and no account for the LDAP user' do
-
               it 'creates a user with dual LDAP and SAML identities' do
                 saml_user.save
 
                 expect(gl_user).to be_valid
                 expect(gl_user.username).to eql uid
-                expect(gl_user.email).to eql 'johndoe@example.com'
+                expect(gl_user.email).to eql 'john@mail.com'
                 expect(gl_user.identities.length).to eql 2
                 identities_as_hash = gl_user.identities.map { |id| { provider: id.provider, extern_uid: id.extern_uid } }
                 expect(identities_as_hash).to match_array([ { provider: 'ldapmain', extern_uid: 'uid=user1,ou=People,dc=example' },
@@ -111,13 +163,13 @@ describe Gitlab::Saml::User, lib: true do
             end
 
             context 'and LDAP user has an account already' do
-              let!(:existing_user) { create(:omniauth_user, email: 'john@example.com', extern_uid: 'uid=user1,ou=People,dc=example', provider: 'ldapmain', username: 'john') }
-              it "adds the omniauth identity to the LDAP account" do
+              let!(:existing_user) { create(:omniauth_user, email: 'john@mail.com', extern_uid: 'uid=user1,ou=People,dc=example', provider: 'ldapmain', username: 'john') }
+              it 'adds the omniauth identity to the LDAP account' do
                 saml_user.save
 
                 expect(gl_user).to be_valid
                 expect(gl_user.username).to eql 'john'
-                expect(gl_user.email).to eql 'john@example.com'
+                expect(gl_user.email).to eql 'john@mail.com'
                 expect(gl_user.identities.length).to eql 2
                 identities_as_hash = gl_user.identities.map { |id| { provider: id.provider, extern_uid: id.extern_uid } }
                 expect(identities_as_hash).to match_array([ { provider: 'ldapmain', extern_uid: 'uid=user1,ou=People,dc=example' },
@@ -126,19 +178,13 @@ describe Gitlab::Saml::User, lib: true do
               end
             end
           end
-
-          context 'and no corresponding LDAP person' do
-            before { allow(Gitlab::LDAP::Person).to receive(:find_by_uid).and_return(nil) }
-
-            include_examples 'to verify compliance with allow_single_sign_on'
-          end
         end
       end
 
     end
 
     describe 'blocking' do
-      before { stub_omniauth_config({ allow_saml_sign_up: true, auto_link_saml_user: true }) }
+      before { stub_omniauth_config({ allow_single_sign_on: ['saml'], auto_link_saml_user: true }) }
 
       context 'signup with SAML only' do
         context 'dont block on create' do
@@ -162,64 +208,6 @@ describe Gitlab::Saml::User, lib: true do
         end
       end
 
-      context 'signup with linked omniauth and LDAP account' do
-        before do
-          stub_omniauth_config(auto_link_ldap_user: true)
-          allow(ldap_user).to receive(:uid) { uid }
-          allow(ldap_user).to receive(:username) { uid }
-          allow(ldap_user).to receive(:email) { ['johndoe@example.com','john2@example.com'] }
-          allow(ldap_user).to receive(:dn) { 'uid=user1,ou=People,dc=example' }
-          allow(saml_user).to receive(:ldap_person).and_return(ldap_user)
-        end
-
-        context "and no account for the LDAP user" do
-          context 'dont block on create (LDAP)' do
-            before { allow_any_instance_of(Gitlab::LDAP::Config).to receive_messages(block_auto_created_users: false) }
-
-            it do
-              saml_user.save
-              expect(gl_user).to be_valid
-              expect(gl_user).not_to be_blocked
-            end
-          end
-
-          context 'block on create (LDAP)' do
-            before { allow_any_instance_of(Gitlab::LDAP::Config).to receive_messages(block_auto_created_users: true) }
-
-            it do
-              saml_user.save
-              expect(gl_user).to be_valid
-              expect(gl_user).to be_blocked
-            end
-          end
-        end
-
-        context 'and LDAP user has an account already' do
-          let!(:existing_user) { create(:omniauth_user, email: 'john@example.com', extern_uid: 'uid=user1,ou=People,dc=example', provider: 'ldapmain', username: 'john') }
-
-          context 'dont block on create (LDAP)' do
-            before { allow_any_instance_of(Gitlab::LDAP::Config).to receive_messages(block_auto_created_users: false) }
-
-            it do
-              saml_user.save
-              expect(gl_user).to be_valid
-              expect(gl_user).not_to be_blocked
-            end
-          end
-
-          context 'block on create (LDAP)' do
-            before { allow_any_instance_of(Gitlab::LDAP::Config).to receive_messages(block_auto_created_users: true) }
-
-            it do
-              saml_user.save
-              expect(gl_user).to be_valid
-              expect(gl_user).not_to be_blocked
-            end
-          end
-        end
-      end
-
-
       context 'sign-in' do
         before do
           saml_user.save
@@ -245,26 +233,6 @@ describe Gitlab::Saml::User, lib: true do
             expect(gl_user).not_to be_blocked
           end
         end
-
-        context 'dont block on create (LDAP)' do
-          before { allow_any_instance_of(Gitlab::LDAP::Config).to receive_messages(block_auto_created_users: false) }
-
-          it do
-            saml_user.save
-            expect(gl_user).to be_valid
-            expect(gl_user).not_to be_blocked
-          end
-        end
-
-        context 'block on create (LDAP)' do
-          before { allow_any_instance_of(Gitlab::LDAP::Config).to receive_messages(block_auto_created_users: true) }
-
-          it do
-            saml_user.save
-            expect(gl_user).to be_valid
-            expect(gl_user).not_to be_blocked
-          end
-        end
       end
     end
   end
diff --git a/spec/models/repository_spec.rb b/spec/models/repository_spec.rb
index f517f325c0..4e49c413f2 100644
--- a/spec/models/repository_spec.rb
+++ b/spec/models/repository_spec.rb
@@ -670,6 +670,19 @@ describe Repository, models: true do
 
       repository.after_create
     end
+
+    it 'flushes the root ref cache' do
+      expect(repository).to receive(:expire_root_ref_cache)
+
+      repository.after_create
+    end
+
+    it 'flushes the emptiness caches' do
+      expect(repository).to receive(:expire_emptiness_caches)
+
+      repository.after_create
+    end
+
   end
 
   describe "#main_language" do
diff --git a/spec/requests/api/milestones_spec.rb b/spec/requests/api/milestones_spec.rb
index db0f6e3c0f..344f0fe0b7 100644
--- a/spec/requests/api/milestones_spec.rb
+++ b/spec/requests/api/milestones_spec.rb
@@ -4,6 +4,7 @@ describe API::API, api: true  do
   include ApiHelpers
   let(:user) { create(:user) }
   let!(:project) { create(:project, namespace: user.namespace ) }
+  let!(:closed_milestone) { create(:closed_milestone, project: project) }
   let!(:milestone) { create(:milestone, project: project) }
 
   before { project.team << [user, :developer] }
@@ -20,6 +21,24 @@ describe API::API, api: true  do
       get api("/projects/#{project.id}/milestones")
       expect(response.status).to eq(401)
     end
+
+    it 'returns an array of active milestones' do
+      get api("/projects/#{project.id}/milestones?state=active", user)
+
+      expect(response.status).to eq(200)
+      expect(json_response).to be_an Array
+      expect(json_response.length).to eq(1)
+      expect(json_response.first['id']).to eq(milestone.id)
+    end
+
+    it 'returns an array of closed milestones' do
+      get api("/projects/#{project.id}/milestones?state=closed", user)
+
+      expect(response.status).to eq(200)
+      expect(json_response).to be_an Array
+      expect(json_response.length).to eq(1)
+      expect(json_response.first['id']).to eq(closed_milestone.id)
+    end
   end
 
   describe 'GET /projects/:id/milestones/:milestone_id' do
@@ -31,10 +50,12 @@ describe API::API, api: true  do
     end
 
     it 'should return a project milestone by iid' do
-      get api("/projects/#{project.id}/milestones?iid=#{milestone.iid}", user)
+      get api("/projects/#{project.id}/milestones?iid=#{closed_milestone.iid}", user)
+
       expect(response.status).to eq 200
-      expect(json_response.first['title']).to eq milestone.title
-      expect(json_response.first['id']).to eq milestone.id
+      expect(json_response.size).to eq(1)
+      expect(json_response.first['title']).to eq closed_milestone.title
+      expect(json_response.first['id']).to eq closed_milestone.id
     end
 
     it 'should return 401 error if user not authenticated' do
diff --git a/spec/requests/api/notes_spec.rb b/spec/requests/api/notes_spec.rb
index 39f9a06fe1..a467bc935a 100644
--- a/spec/requests/api/notes_spec.rb
+++ b/spec/requests/api/notes_spec.rb
@@ -241,4 +241,65 @@ describe API::API, api: true  do
     end
   end
 
+  describe 'DELETE /projects/:id/noteable/:noteable_id/notes/:note_id' do
+    context 'when noteable is an Issue' do
+      it 'deletes a note' do
+        delete api("/projects/#{project.id}/issues/#{issue.id}/"\
+                   "notes/#{issue_note.id}", user)
+
+        expect(response.status).to eq(200)
+        # Check if note is really deleted
+        delete api("/projects/#{project.id}/issues/#{issue.id}/"\
+                   "notes/#{issue_note.id}", user)
+        expect(response.status).to eq(404)
+      end
+
+      it 'returns a 404 error when note id not found' do
+        delete api("/projects/#{project.id}/issues/#{issue.id}/notes/123", user)
+
+        expect(response.status).to eq(404)
+      end
+    end
+
+    context 'when noteable is a Snippet' do
+      it 'deletes a note' do
+        delete api("/projects/#{project.id}/snippets/#{snippet.id}/"\
+                   "notes/#{snippet_note.id}", user)
+
+        expect(response.status).to eq(200)
+        # Check if note is really deleted
+        delete api("/projects/#{project.id}/snippets/#{snippet.id}/"\
+                   "notes/#{snippet_note.id}", user)
+        expect(response.status).to eq(404)
+      end
+
+      it 'returns a 404 error when note id not found' do
+        delete api("/projects/#{project.id}/snippets/#{snippet.id}/"\
+                   "notes/123", user)
+
+        expect(response.status).to eq(404)
+      end
+    end
+
+    context 'when noteable is a Merge Request' do
+      it 'deletes a note' do
+        delete api("/projects/#{project.id}/merge_requests/"\
+                   "#{merge_request.id}/notes/#{merge_request_note.id}", user)
+
+        expect(response.status).to eq(200)
+        # Check if note is really deleted
+        delete api("/projects/#{project.id}/merge_requests/"\
+                   "#{merge_request.id}/notes/#{merge_request_note.id}", user)
+        expect(response.status).to eq(404)
+      end
+
+      it 'returns a 404 error when note id not found' do
+        delete api("/projects/#{project.id}/merge_requests/"\
+                   "#{merge_request.id}/notes/123", user)
+
+        expect(response.status).to eq(404)
+      end
+    end
+  end
+
 end
diff --git a/spec/requests/api/project_members_spec.rb b/spec/requests/api/project_members_spec.rb
index 4301588b16..c112ca5e3c 100644
--- a/spec/requests/api/project_members_spec.rb
+++ b/spec/requests/api/project_members_spec.rb
@@ -118,8 +118,10 @@ describe API::API, api: true  do
   end
 
   describe "DELETE /projects/:id/members/:user_id" do
-    before { project_member }
-    before { project_member2 }
+    before do
+      project_member
+      project_member2
+    end
 
     it "should remove user from project team" do
       expect do
@@ -132,6 +134,7 @@ describe API::API, api: true  do
       expect do
         delete api("/projects/#{project.id}/members/#{user3.id}", user)
       end.to_not change { ProjectMember.count }
+      expect(response.status).to eq(200)
     end
 
     it "should return 200 if team member already removed" do
@@ -145,8 +148,19 @@ describe API::API, api: true  do
         delete api("/projects/#{project.id}/members/1000000", user)
       end.to change { ProjectMember.count }.by(0)
       expect(response.status).to eq(200)
-      expect(json_response['message']).to eq("Access revoked")
       expect(json_response['id']).to eq(1000000)
+      expect(json_response['message']).to eq('Access revoked')
+    end
+
+    context 'when the user is not an admin or owner' do
+      it 'can leave the project' do
+        expect do
+          delete api("/projects/#{project.id}/members/#{user3.id}", user3)
+        end.to change { ProjectMember.count }.by(-1)
+
+        expect(response.status).to eq(200)
+        expect(json_response['id']).to eq(project_member2.id)
+      end
     end
   end
 end
diff --git a/spec/requests/api/tags_spec.rb b/spec/requests/api/tags_spec.rb
index acbd9c3e33..9f9c3b1cf4 100644
--- a/spec/requests/api/tags_spec.rb
+++ b/spec/requests/api/tags_spec.rb
@@ -40,17 +40,17 @@ describe API::API, api: true  do
     end
   end
 
-  describe "GET /projects/:id/repository/tags/:tag_name" do
+  describe 'GET /projects/:id/repository/tags/:tag_name' do
     let(:tag_name) { project.repository.tag_names.sort.reverse.first }
 
-    it 'should return a specific tag' do
+    it 'returns a specific tag' do
       get api("/projects/#{project.id}/repository/tags/#{tag_name}", user)
 
       expect(response.status).to eq(200)
       expect(json_response['name']).to eq(tag_name)
     end
 
-    it 'should return 404 for an invalid tag name' do
+    it 'returns 404 for an invalid tag name' do
       get api("/projects/#{project.id}/repository/tags/foobar", user)
 
       expect(response.status).to eq(404)
diff --git a/spec/services/git_push_service_spec.rb b/spec/services/git_push_service_spec.rb
index 1047e32960..b40a5c1c81 100644
--- a/spec/services/git_push_service_spec.rb
+++ b/spec/services/git_push_service_spec.rb
@@ -164,21 +164,37 @@ describe GitPushService, services: true do
     end
 
     context "after push" do
-      before do
-        @service = execute_service(project, user, @oldrev, @newrev, ref)
+      def execute
+        execute_service(project, user, @oldrev, @newrev, ref)
       end
 
       context "to master" do
         let(:ref) { @ref }
 
-        it { expect(@service.update_main_language).to eq(true) }
-        it { expect(project.main_language).to eq("Ruby") }
+        context 'when main_language is nil' do
+          it 'obtains the language from the repository' do
+            expect(project.repository).to receive(:main_language)
+            execute
+          end
+
+          it 'sets the project main language' do
+            execute
+            expect(project.main_language).to eq("Ruby")
+          end
+        end
+
+        context 'when main_language is already set' do
+          it 'does not check the repository' do
+            execute # do an initial run to simulate lang being preset
+            expect(project.repository).not_to receive(:main_language)
+            execute
+          end
+        end
       end
 
       context "to other branch" do
         let(:ref) { 'refs/heads/feature/branch' }
 
-        it { expect(@service.update_main_language).to eq(nil) }
         it { expect(project.main_language).to eq(nil) }
       end
     end
diff --git a/spec/services/notes/delete_service_spec.rb b/spec/services/notes/delete_service_spec.rb
new file mode 100644
index 0000000000..1d0a747a48
--- /dev/null
+++ b/spec/services/notes/delete_service_spec.rb
@@ -0,0 +1,15 @@
+require 'spec_helper'
+
+describe Notes::DeleteService, services: true do
+  describe '#execute' do
+    it 'deletes a note' do
+      project = create(:empty_project)
+      issue = create(:issue, project: project)
+      note = create(:note, project: project, noteable: issue)
+
+      described_class.new(project, note.author).execute(note)
+
+      expect(project.issues.find(issue.id).notes).not_to include(note)
+    end
+  end
+end
diff --git a/spec/services/projects/import_export/project_tree_saver_spec.rb b/spec/services/projects/import_export/project_tree_saver_spec.rb
index eda9e08cdc..05ece41341 100644
--- a/spec/services/projects/import_export/project_tree_saver_spec.rb
+++ b/spec/services/projects/import_export/project_tree_saver_spec.rb
@@ -20,9 +20,10 @@ describe Projects::ImportExport::ProjectTreeSaver, services: true do
              merge_requests: [merge_request],
              labels: [label],
              snippets: [snippet],
-             releases: [release],
-             commit_statuses: [commit_status])
+             releases: [release]
+             )
     end
+    let!(:ci_commit) { create(:ci_commit, project: project, sha: merge_request.last_commit.id, ref: merge_request.source_branch, statuses: [commit_status]) }
     let!(:milestone) { create(:milestone, title: "Milestone v1.2", project: project) }
     let(:export_path) { "#{Dir::tmpdir}/project_tree_saver_spec" }
     let(:shared) { Projects::ImportExport::Shared.new(relative_path: project.path_with_namespace) }
@@ -86,10 +87,6 @@ describe Projects::ImportExport::ProjectTreeSaver, services: true do
         expect(saved_project_json['issues'].first['notes']).not_to be_empty
       end
 
-      it 'has commit statuses' do
-        expect(saved_project_json['commit_statuses']).not_to be_empty
-      end
-
       it 'has project members' do
         expect(saved_project_json['project_members']).not_to be_empty
       end
@@ -102,8 +99,12 @@ describe Projects::ImportExport::ProjectTreeSaver, services: true do
         expect(saved_project_json['merge_requests'].first['notes']).not_to be_empty
       end
 
+      it 'has commit statuses' do
+        expect(saved_project_json['ci_commits'].first['statuses']).not_to be_empty
+      end
+
       it 'has ci commits' do
-        expect(saved_project_json['commit_statuses'].first['commit']).not_to be_empty
+        expect(saved_project_json['ci_commits']).not_to be_empty
       end
     end
   end
diff --git a/spec/support/matchers/markdown_matchers.rb b/spec/support/matchers/markdown_matchers.rb
index 1d52489e80..43cb6ef43f 100644
--- a/spec/support/matchers/markdown_matchers.rb
+++ b/spec/support/matchers/markdown_matchers.rb
@@ -13,7 +13,7 @@ module MarkdownMatchers
     set_default_markdown_messages
 
     match do |actual|
-      link  = actual.at_css('a:contains("Relative Link")')
+      link = actual.at_css('a:contains("Relative Link")')
       image = actual.at_css('img[alt="Relative Image"]')
 
       expect(link['href']).to end_with('master/doc/README.md')
@@ -72,14 +72,15 @@ module MarkdownMatchers
       have_css("img[src$='#{src}']")
     end
 
+    prefix = '/namespace1/gitlabhq/wikis'
     set_default_markdown_messages
 
     match do |actual|
-      expect(actual).to have_link('linked-resource', href: 'linked-resource')
-      expect(actual).to have_link('link-text', href: 'linked-resource')
+      expect(actual).to have_link('linked-resource', href: "#{prefix}/linked-resource")
+      expect(actual).to have_link('link-text', href: "#{prefix}/linked-resource")
       expect(actual).to have_link('http://example.com', href: 'http://example.com')
       expect(actual).to have_link('link-text', href: 'http://example.com/pdfs/gollum.pdf')
-      expect(actual).to have_image('/gitlabhq/wikis/images/example.jpg')
+      expect(actual).to have_image("#{prefix}/images/example.jpg")
       expect(actual).to have_image('http://example.com/images/example.jpg')
     end
   end