Fixes dropdown appearance and makes it look accordingly to current design

Fixes #11874

See merge request !2920

Extend specs for summary build status

Additional specs cover a case when one of the builds is running but
allowed to fail. Previous implementation returned `running` status,
which is wrong. This behavior has been changed in 8.5, this commit adds
missing specs.

See merge request !2904

Fix volatile spec.

Fixes https://gitlab.com/gitlab-org/gitlab-ee/issues/312.

See merge request !206

Show project visibility level on project list

Fixes #3779

![Screen_Shot_2016-02-22_at_10.08.58](/uploads/611cc8aa2d12591d4fe6a70ba0f45d68/Screen_Shot_2016-02-22_at_10.08.58.png)

See merge request !2908

Added line links to blame table

Closes #4119

See merge request !2915

[ci skip]

Ensure we don't check a commit's description for revert message if it has no description

Fixes #13631.

/cc @razer6 @grzesiek @yorickpeterse @rdavila 

See merge request !2917

Properly set `auto_link_saml_user` default value in the Settings loader.

See merge request !2922

Fixed revert button tooltip placement causing movement

Before:

![moving-tooltip](/uploads/65cb9a41e8b8114fd8ee10d68cfd8206/moving-tooltip.gif)

After:

![moving-tooltip](/uploads/a1c36eb5735dc7592c49f6b5cb1469b5/moving-tooltip.gif)

See merge request !2910

Changed the size of status indicators

![Screen_Shot_2016-02-22_at_12.53.25](/uploads/229593bf76a78a2ce658c565d805716a/Screen_Shot_2016-02-22_at_12.53.25.png)

![Screen_Shot_2016-02-22_at_12.53.36](/uploads/d328809a3288943a47bed2cf13611a03/Screen_Shot_2016-02-22_at_12.53.36.png)

Closes #12763

See merge request !2913

Fixed issue with header overflow

Fixes #13492

Before:

![Screen_Shot_2016-02-22_at_15.32.42](/uploads/aefec4e67368d0387f22448be8eea65c/Screen_Shot_2016-02-22_at_15.32.42.png)

After:

![Screen_Shot_2016-02-22_at_15.32.09](/uploads/76b0d96cd5d9a4076c9d0883aaaba003/Screen_Shot_2016-02-22_at_15.32.09.png)

See merge request !2921

Check the HEAD of branch when doing Merge When Succeeded

Implements https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/2894#note_3845158

cc @DouweM @grzesiek 


See merge request !2907

Add a Pinned Tab icon for Safari

See http://apple.co/1SCRzrw

Closes #13540

[ci skip]

See merge request !2883

Fixed issue with content in the issue sidebar disappearing

Closes #13626

See merge request !2919

Fixes #13492

Closes #13626

Fix Side-by-side view after loading diff results

Fixes #13463

See merge request !2880

Closes #12763

Closes #4119

Add when the API changes got introduced



See merge request !2912

[ci skip]

Fixed failing issues tests

Also removed up/down vote icons from merge requests. Was missed from d8069bd8

See merge request !2911

Removed up/down vote icons from merge requests. Was missed from d8069bd8

Only show up or down votes icon on issue list if there are any

Closes #13649 

![Screen_Shot_2016-02-22_at_10.20.27](/uploads/21477426856dab9731bb110032025867/Screen_Shot_2016-02-22_at_10.20.27.png)

See merge request !2909

Closes #13649

Fixes #3779

Add Todos

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/2425

Tasks:

-  Prepare database
 - [X] Create a new table (`todos`)
- Tasks Queue view
 - [X] Add a number icon showing the number of todos on the top right next to the new and logout button that will redirect the user to the todos page
 - [X] Add a chronological list of todos, with the 'Todos' tab active by default
 - [X] Add a 'Done' button to each todo
 - [x] Add filters (project, author, type, and action)
- Todos generation
 - [X] When user issue/mr is assgined to someone
 - [x] When user is mentioned on (issues/mr's/comments)
- Mark todo as `done`
 - [X] When clicks on the 'Done' button
 - [X] When edit issue/mr
 - [X] When left/edit a comment
 - [X] When reassign issue/mr
 - [X] When add/remove labels to issue/mr
 - [X] When issue/mr is closed
 - [X] When mr is merged
 - [X] When added an emoji
 - [X] When changed the issue/mr milestone

* Screenshot:

![Screenshot_2016-02-20_12.45.57](/uploads/4b2554b1bde25aed3347e1ae41e8e0c0/Screenshot_2016-02-20_12.45.57.png)

See merge request !2817