Disable spellcheck and autocorrect for username field in admin page
closes#14855
## before

## after

See merge request !3730
Fix cross-project label ref used with invalid project
When cross-project label reference was used with invalid project reference, `nil` was assigned to project variable which later caused an exception.
Closes#15168
See merge request !3811
Fixes issue with note form inheriting text color
It was only really noticeable on dark themed diffs

See merge request !3834
Discussion note icon shows up when you click on diff on touch screen
Fixes#15104
* Fix bug that stopped discussion note button from showing up on iOS
* Shifted button a few `px` to fix slight cutoff
<div>
<img src="/uploads/9d507091f33aa69ef68323386bf3a5c2/Screen_Shot_2016-04-15_at_12.08.46_PM.png" width="300px">
<img src="/uploads/a964a2a46636cbe4593abf272b5796f7/Screen_Shot_2016-04-15_at_12.11.40_PM.png" width="300px">
</div>
See merge request !3755
Fix setting of "action" for Grape transactions
After wondering why we're not getting all the data in Grafana that I
wanted I realized I wasn't setting the "action" field properly here.
See merge request !3842
Wrap all code in diffs
Closes#15382Closes#15422
All diff code wraps to next line instead of scrolling
<img src="/uploads/ec5754919bac0b027fcb122bb88435b3/Screen_Shot_2016-04-20_at_12.22.27_PM.png" width="500px">
See merge request !3838
fix bug causing the infinite scrolling in activity feeds to break when you click a link and navigate back

See merge request !3835
Add margin to top of form actions
Closes#15213
Also fixes other modal inputs (like add new directory, etc)

See merge request !3841
Fixed issue with sidebar edit links toggling anchor
This caused an issue with the page scrolling from the bottom to the top. Also stopped the dropdown links doing the same.
See merge request !3819
Removed commented text from system notes

See merge request !3836
Fixed issue with new MR form layout
Currently it is all over the place:

Now:

See merge request !3837
Add raw build trace output
Closes#15308, #15147
Changes in the UI:
- on finished build:

- on running build:

See merge request !3767
add slack notifications for wiki pages
## What does this MR do?
Lets the Slack service be configured to send notifications when wiki pages are created or edited.
## Are there points in the code the reviewer needs to double check?
I'm just starting to get familiar with the Gitlab codebase and I was unsure on how to get the wiki page url to pass it to the slack message, on whether or not I needed to refactor the create/update methods for wiki pages from the controller to a service (but seemed necessary to test it better), and if I needed to add a column to the web hooks table or if the services table would have been enough. Please let me know if I should change anything and I will improve the MR, thanks for checking :)
## Why was this MR needed?
Related to #563 and fixes#4233.
See merge request !2998
In doing this I'm breaking my own rules of not merging master into a
stable branch during the feature freeze. I'm breaking this rule for two
reasons:
1. Somewhere down the line I messed up picking commits into the stable
branch and as a result I basically can't merge anything anymore
without resolving 9000 merge conflicts.
2. All merge requests merged into master had the "Pick into Stable"
label anyway except for one commit that bumps the version. As such
merging master into this branch is not really different from picking
things manually.
Sanitize branch names for confidential issues
- When creating new branches for confidential issues, prefer a branch name like `issue-15` to `some-sensitive-issue-title-15`.
- The behaviour for non-confidential issues stays the same.
Closes#14566
See merge request !3671
Configuring of points per UDP packet
Related to https://gitlab.com/gitlab-com/operations/issues/195. This option would allow us to experiment with finding a good balance between points-per-packet and the UDP packet size.
cc @pcarranza
See merge request !3816
"git lfs init" is deprecated, use "git lfs install" instead.
Recent releases of git-lfs warn that "init" is a deprecated command and that "install" should be used.
See merge request !3779
Remove persistent XSS vulnerability in `commit_person_link` helper
Because we were incorrectly supplying the tooltip title as
`data-original-title` (which Bootstrap's Tooltip JS automatically
applies based on the `title` attribute; we should never be setting it
directly), the value was being passed through as-is.
Instead, we should be supplying the normal `title` attribute and letting
Rails escape the value, which also negates the need for us to call
`sanitize` on it.
Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/15126
See merge request !1948
Trigger filtering after ajax is complete in dropdown

Closes#15186
See merge request !3813
This allows users to configure the number of points stored in a single
UDP packet. This in turn can be used to reduce the number of UDP packets
being sent at the cost of these packets being somewhat larger.
The default setting is 1 point per packet so nothing changes for
existing users.
API: Present an array of Gitlab::Git::Tag instead of array of rugged tags
The annotated message was always `null` because the wrong array was presented.
The entity requires an array of `Gitlab::Git::Tags` instead an array of raw rugged tags was presented. Since a rugged tag does not respond to `message` to get the annotated message, this was always `null`.
See merge request !3764
Add notice about GitLab Runner to requirements docs
This is related to #14589, and problems that may stem from running
GitLab Runner on same machine user installed GitLab web app on.
See merge request !3518