Also add a test for setting locked.

Feedback:
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/4093#note_12278454

Feedback:
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/4404#note_12217415

for a particular project.

Shows award emoji for comments to all users who are logged in.

## What does this MR do?
Fixes the award emoji picker not showing up for users who weren't able to edit another user's comment.

## Screenshots (if relevant)
Before:

![Screen_Shot_2016-06-08_at_5.18.04_PM](/uploads/a8b40ba319481f53d55de055d84649b9/Screen_Shot_2016-06-08_at_5.18.04_PM.png)

After (logged in):
![Screen_Shot_2016-06-08_at_5.16.16_PM](/uploads/535edcca6fbdd8834beda39399f85384/Screen_Shot_2016-06-08_at_5.16.16_PM.png)

After (logged out):
![Screen_Shot_2016-06-08_at_5.15.08_PM](/uploads/7f0dff751714c7d20f78b56893cacd59/Screen_Shot_2016-06-08_at_5.15.08_PM.png)

cc: @fatihacet 

See merge request !4547

Show loading indicator for autocomplete

![autocomplete](/uploads/397df34689aeb5f4cbca99aea209c8cf/autocomplete.gif)

Closes #15435

See merge request !4182

#17284 Edit form does not cancel correctly

## What does this MR do?

Replaces the markdown textarea with the currently saved note text when the note edit is cancelled.

## Are there points in the code the reviewer needs to double check?

No

## Why was this MR needed?

Allows the user to revert back to the original note text, as expected, using cancel.

## What are the relevant issue numbers?

Fixes #17284.

## Screenshots

![17284](/uploads/c3598de6f8e70d52275ef25907d92d42/17284.gif)

See merge request !4175

Side nav scrolls if content height taller than screen

## What does this MR do?
Header logo is now fixed at top; put back scrolling functionality in side nav

## Screenshots (if relevant)
<img src="/uploads/e1d1b60c296c39c61d7fe7da22b6c52d/scroll.gif" width="600px">

See merge request !4513

Disable CSRF protection when serving Git HTTP clients

Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/18331

See merge request !4538

Add new icons in left sidebar and layout nav

Closes #17609    
Closes #17240    
Closes #17321    

![Screen_Shot_2016-06-02_at_8.47.38_AM](/uploads/f254fe81cba65cbdeb8e5720f0b2fc19/Screen_Shot_2016-06-02_at_8.47.38_AM.png)
![Screen_Shot_2016-06-02_at_8.53.33_AM](/uploads/2c27284f0a4916fe447794d9b663c4df/Screen_Shot_2016-06-02_at_8.53.33_AM.png)

@skyruler I couldn't find the icons for `Projects`, `Merge Requests`, `Snippets`, or `Help` in the design repo. Do you have them available somewhere?

See merge request !4268

Use container helper instead of hard coded container

## What does this MR do?
Add `container_class` helper class to fix layout bug

## What are the relevant issue numbers?
#18333 
## Screenshots (if relevant)
Fixed:    
![Screen_Shot_2016-06-08_at_2.03.38_PM](/uploads/6e7575d711efb8eaf6ba641907b2d607/Screen_Shot_2016-06-08_at_2.03.38_PM.png)
Fluid:     
![Screen_Shot_2016-06-08_at_2.03.56_PM](/uploads/33d3f73781ca9ed129f853abfe9feb4b/Screen_Shot_2016-06-08_at_2.03.56_PM.png)

See merge request !4543

Fixed dropdown link line-height

## What does this MR do?

Fixes line-height issue on dropdown menu links

## Why was this MR needed?

The line-height of some dropdown links were taking the parent, most noticeable the commit header

## Screenshots (if relevant)

Before:

![Screen_Shot_2016-06-08_at_12.26.13](/uploads/51d6bbb4d727da0e3f27d715d6556d4f/Screen_Shot_2016-06-08_at_12.26.13.png)

After:

![Screen_Shot_2016-06-08_at_12.25.03](/uploads/2dcbfaa67982500eef42cfe4247cd54d/Screen_Shot_2016-06-08_at_12.25.03.png)

See merge request !4531

Improve ui consistency

* Decline idea of using gray buttons actively in UI
* remove icons from some buttons that already has text
* standardizes margin between buttons 


First step in https://gitlab.com/gitlab-org/gitlab-ce/issues/18324 

See merge request !4533

Allow custom text on 'almost there' page

Add a new application setting, after_sign_up_text. This is text to be
rendered as Markdown and shown on the 'almost there' page after a user
signs up, but before they've confirmed their account.

Closes #14098.

See merge request !4098

Allow clones from /namespace/project

Allow `git clone https://host/namespace/project` to work, in addition to `git clone https://host/namespace/project.git`

Closes #13840.

See merge request !4530

Redirect /namespace/project/info/refs to
/namespace/project.git/info/refs, so `git clone` works on either
namespace/project.git or namespace/project.

Added minimum password length to password field

Add a placeholder to the password field in the register form with the minimum number of characters required. Also added a pattern to the field to stop it submitting if less than that.

Closes #17765

See merge request !4458

Set target="_blank" for external links

Closes #14553

See merge request !4526

Disable Rails/UniqBeforePluck rubocop cop

 Rails/UniqBeforePluck seems to have some bugs 

* https://github.com/bbatsov/rubocop/issues/3122
* https://github.com/bbatsov/rubocop/issues/3148

and we had some problems in EE with that https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/425#note_12245005

See merge request !4477

[ci skip]

Add a new application setting, after_sign_up_text. This is text to be
rendered as Markdown and shown on the 'almost there' page after a user
signs up, but before they've confirmed their account.

Tweak the styles for that page so that centered lists look reasonable.

Sidebar updates

## What does this MR do?
Updates `nav/_admin.html.haml` and `nav/_explore.html.haml` to match new compact sidebar design

## Screenshots (if relevant)
![Screen_Shot_2016-06-07_at_2.19.18_PM](/uploads/5699987001de901a67d503b097d1b19d/Screen_Shot_2016-06-07_at_2.19.18_PM.png)

See merge request !4517

Update Knapsack report only on master

## What does this MR do?

Makes to generate Knapsack report only on master. This speed-ups tests, because the last stage can be run significant time after previous stages.


See merge request !4540

Optimize issuable APIs interaction with notes

See merge request !4471