Add new CI status icons

## What does this MR do?
Adds new CI status icons for every state

## What are the relevant issue numbers?
Closes #19847 

## Screenshots (if relevant)
![Screen_Shot_2016-07-19_at_6.58.37_AM](/uploads/ec391b59825f5a4a228d7c77e7485b1e/Screen_Shot_2016-07-19_at_6.58.37_AM.png)


See merge request !5280

upgrade rouge to 2.0.5

## What does this MR do?
Upgrades Rouge to 2.0.5

## Are there points in the code the reviewer needs to double check?
No

## Why was this MR needed?
New lexers and bugfixes from upstream.

## What are the relevant issue numbers?

## Screenshots (if relevant)

## Does this MR meet the acceptance criteria?

- [ ] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- [ ] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)
- [ ] API support added
- Tests
  - [ ] Added for this feature/bug
  - [ ] All builds are passing
- [ ] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [ ] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [ ] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

See merge request !5351

Remove white background on clipboard button; position icon

## What does this MR do?
Removes white background from clipboard button

## What are the relevant issue numbers?
Closes #19098 

## Screenshots (if relevant)
![Screen_Shot_2016-07-18_at_3.12.24_PM](/uploads/4a6a540e1a074e6cf89fb99be1b49f2d/Screen_Shot_2016-07-18_at_3.12.24_PM.png)
![Screen_Shot_2016-07-18_at_8.50.55_PM](/uploads/8c594b6f9a74095b194fe1f634eaf226/Screen_Shot_2016-07-18_at_8.50.55_PM.png)

See merge request !5335

Fix styling of tag page

## What does this MR do?
Fixes tag page UI

## Screenshots (if relevant)
Before:    
![Screen_Shot_2016-07-18_at_3.09.28_PM](/uploads/575776fe7917321307baf2b8c2b34d75/Screen_Shot_2016-07-18_at_3.09.28_PM.png)
After:    
![Screen_Shot_2016-07-18_at_3.09.08_PM](/uploads/44f905318c01eb094989cb74bcd4c3c1/Screen_Shot_2016-07-18_at_3.09.08_PM.png)

See merge request !5334

New fork icon!

## What does this MR do?
We are using the old fork icon for branching only, so this implements our new custom fork icon

## Screenshots (if relevant)
![Screen_Shot_2016-07-15_at_9.22.33_AM](/uploads/05abaffff314e41f582189327bcca6b2/Screen_Shot_2016-07-15_at_9.22.33_AM.png)     
![Screen_Shot_2016-07-15_at_9.29.14_AM](/uploads/a08c622c92da00945406bbd4b3497749/Screen_Shot_2016-07-15_at_9.29.14_AM.png)

cc @hazelyang 

See merge request !5276

Fix help page paths to make sure shortcuts and the UI help page work.

Add a test to make sure the help page UI path doesn't break in the future.

Fixes #19972 and #19889.

cc: @dzaporozhets @rspeicher @lbennett 

See merge request !5350

Add a test to make sure the help page UI path doesn't break in the future.

Fix #19972 and #19889.

Implements the form for renaming the new filename on the file edit page

## What does this MR do?
Adds the possibility to edit a filename when editing the content of a file on Gitlab

this MR was made to solve #5850 

![Screen_Shot_2016-07-01_at_16.45.53](/uploads/eeed05800e3dc11f1e3840e0e4fa06b5/Screen_Shot_2016-07-01_at_16.45.53.png)

See merge request !5049

Allow to pull code with deploy key from public projects

## What does this MR do?
With deploy keys you can download any public projects stored in GitLab.

## What are the relevant issue numbers?
Fixes: https://gitlab.com/gitlab-org/gitlab-ce/issues/1217

## Does this MR meet the acceptance criteria?

- [ ] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- [ ] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)
- [ ] API support added
- Tests
  - [ ] Added for this feature/bug
  - [ ] All builds are passing
- [ ] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [ ] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [ ] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

See merge request !5316

Project avatar import/export functionality

Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/19851

Adds logic to export and import a project avatar

- [x] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- ~~[ ] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)~~
- Tests
  - [x] Added for this feature/bug
  - [x] All builds are passing
- [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [x] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [x] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

See merge request !5273

Use value of `yaml_variables` and `when` from config_processor if undefined

## What does this MR do?
Uses `yaml_variables` and `when` from config_processor if values for these are undefined.

## Why was this MR needed?
Old builds doesn't have this columns initialised. 
Thus makes the retries on these builds to not work properly.
This is regression introduced by https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/5296.

## Does this MR meet the acceptance criteria?

- Tests
  - [ ] Added for this feature/bug
  - [ ] All builds are passing
- [ ] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [ ] Branch has no merge conflicts with `master` (if you do - rebase it please)


See merge request !5342

Added redirect_to_referer to login link on issues

## What does this MR do?

Adds a `redirect_to_referer` param to login & register links on issues when not logged in. This makes the login box redirect back to the issue after login.

## What are the relevant issue numbers?

Closes #19968 

See merge request !5344

Add support for manual CI actions

## What does this MR do?
This implements a `when: manual` which allows a jobs to be marked as manual actions.
Manual actions have to be explicitly executed by developers.

## What are the relevant issue numbers?
This is to solve: https://gitlab.com/gitlab-org/gitlab-ce/issues/17010

See merge request !5297

Simplify entities for branches and tags API

## What does this MR do?

As talked in !5208, I improved the entity for branches and tags.

## Does this MR meet the acceptance criteria?

~~- [ ] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added~~
~~- [ ] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)~~
~~- [ ] API support added~~
~~- Tests~~
  ~~- [ ] Added for this feature/bug~~
  ~~- [ ] All builds are passing~~
~~- [ ] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)~~
~~- [ ] Branch has no merge conflicts with `master` (if you do - rebase it please)~~
~~- [ ] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)~~

See merge request !5343

Resolve "Add icons for branch and tag in pipeline list"

## What does this MR do?
Adds branch or tag icon on pipeline ref

## What are the relevant issue numbers?
Closes #19751    
Part of #18920 

## Screenshots (if relevant)
![Screen_Shot_2016-07-13_at_1.42.54_PM](/uploads/d90706a76cf87a6cc8c25dca9a71affa/Screen_Shot_2016-07-13_at_1.42.54_PM.png)

With icons closer to tag/branch name/sha:   
![Screen_Shot_2016-07-15_at_11.23.48_AM](/uploads/411338f811bafbd314dbab5553fa46d4/Screen_Shot_2016-07-15_at_11.23.48_AM.png)

See merge request !5239

Added Rake task for tracking deployments

## What does this MR do?

This MR adds a Rake task to track the current version of GitLab in InfluxDB.

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

We may want to document this Rake task in some Markdown file, but I'm not sure what the best place for this would be.

## Why was this MR needed?

We want to have a more accurate overview of when deployments occurred. 

## What are the relevant issue numbers?

https://gitlab.com/gitlab-com/infrastructure/issues/98

## Does this MR meet the acceptance criteria?

- [x] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- [x] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)
- [x] ~~API support added~~
- [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [ ] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [x] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

See merge request !5320

Closes #19968

Api delete todos

## What does this MR do?

It changes the `DELETE /todos` to only return the number of marked todos.

## Why was this MR needed?

Before it returned the marked todos as an paginated array. Since we deleted/marked the todos, there was no way to get the rest of the todos.

## What are the relevant issue numbers?

Closes #19678

## Does this MR meet the acceptance criteria?

~~- [x] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added~~
- [x] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)
- [x] API support added
- Tests
  - [x] Added for this feature/bug
  - [x] All builds are passing
- [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [x] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [x] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

See merge request !5341

This simply inserts the current GitLab version in the "deployments"
measurement.

Fixes gitlab-com/infrastructure#98

Change color of today issue highlight



See merge request !5329