Crop avatars on the client before upload
<img src="/uploads/535d69956cc5904870ae5d95132a35af/Screen_Shot_2016-03-17_at_9.55.56_AM.png" width="700">
closes#7959closes#600
See merge request !3270
Fixed bug where participants would not work correctly on merge requests
Also fixed alignment bug with can't merge badge
Closes#14478, #14494
See merge request !3329
Auto collapses the navigation when resizing
Closes#14475

See merge request !3343
Ability to move issue to another project
Tasks:
- [x] Create scaffold of service that will move issue to another project.
- [x] Close old issue, add system note about moving issue to a new project.
- [x] Create a new issue, add system note about issue being moved from old project.
- [x] Check if issue can be moved to another project before executing service
- [x] Check permissions when moving an issue (`:admin_issue` ability)
- [x] Display select box for a new project when editing an issue
- [x] Show only projects that issue can be moved into in that select box
- [x] Add project select handler, helper and some permission filters to it
- [x] Preserve as much information as possible, including author
- [x] Prepare mechanisms that unfolds local references in issue description
- [x] Rewrite issue description with references unfolding and add some specs for it
- [x] Rewrite all system notes and comments attached to issue that is being moved
- [x] Update `Label` so that is was able to create cross reference labels (separate MR)
- [x] Add notifications about moving issue to another project
- [x] Display confirmation alert/message when issue move has been requested
- [x] Make it possible to undo selecting project where issue will be moved to
- [x] Add column to issue, that will indicate if it has been moved to another project
- [x] Do not allow to move issue that has been already moved
- [x] Write top-to-bottom feature spec in RSpec instead of Spinach
UI:


Closes#3024
See merge request !2831
Make HTTP(s) label consistent on clone bar
Sites that use http:// for the external_url should always display HTTP on
the clone bar. Similarly, sites that use https:// should show HTTPS.
Currently, the inconsistency looks like:

Also restores the tooltips that vanished in 7ba4482fcf:

See merge request !3319
Fix spacing below edit note form
Also changed to allow the CSS to decide what should be hidden when editing
Thanks @JobV for having eagle eyes 😜
See merge request !3306