Merge request tabs stick when scrolling page

## What does this MR do?

When scrolling merge requests this sticks the tabs to below the navigation for easy access.

## Screenshots (if relevant)

![sticky](/uploads/372a9889c50e9f85fef475cbee110ec1/sticky.gif)

## What are the relevant issue numbers?

Closes #20548

See merge request !6382

Rename pipeline.js.es6 to pipelines.js.es6

## What does this MR do?

Rename pipeline.js.es6 to pipelines.js.es6

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

## Why was this MR needed?

`class Pipelines` not `class Pipeline`

## 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 [merge request performance guides](http://docs.gitlab.com/ce/development/merge_request_performance_guidelines.html)
- [ ] 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 it does - rebase it please)
- [ ] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

## What are the relevant issue numbers?

See merge request !6897

Add docs for request profiling

See merge request !6901

Remove '/u' prefix form username from Account page

## What does this MR do?

Removes `/u` prefix for username from Account page

Fixes #23323

See merge request !6872

Closes #23239

Fix empty import URL errors

CE version of https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/780

See merge request !6693

Loads GFM once for per page

## What does this MR do?

Currently the GFM init code is included every time there is a GFM form on the page. This changes that & only includes in once if any number of GFM forms are on the page.

## What are the relevant issue numbers?

#22827

See merge request !6840

Update README.md

This fixes some broken links in our documentation

See merge request !6857

Execute pipeline hooks asynchronously

## What does this MR do?

This MR makes it possible to execute pipeline hooks asynchronously, what should help to improve performance of CI pipeline processing.

## What are the relevant issue numbers?

Closes #23056

See merge request !6824

Increased performance of GL dropdown renderItem

## What does this MR do?

- Fixes an issue where `renderItem` is called several times even when not required
- Increased performance when rendering dropdown items
  - When using the `gl_dropdown.renderItem` it cuts the render time in approx. half. The main part holding it back now is finding the input to work out if it selected or not.

## What are the relevant issue numbers?

Closes #21110

See merge request !6222

Use gitlab-workhorse 0.8.5

## What does this MR do?

Bump gitlab-workhorse to 0.8.5

## Why was this MR needed?

Fixes to the diff and patch endpoints. See https://gitlab.com/gitlab-org/gitlab-workhorse/merge_requests/68#note_16919390

See merge request !6891

Remove a period that can be annoying

I looked through the labels, not even `P1` or `customer+` was able to really capture the importance of this MR and what it means for the future of GitLab.

## What does this MR do?

It removes the period `.` at the end of the following line in the `Documentation` **Merge Request Template**

`See the general Documentation guidelines http://docs.gitlab.com/ce/development/doc_styleguide.html.`

## Why was this MR needed?

Because, while editing the MR `Description` the link is not clickable, so it is very easy to copy the link with the period `.` and then it ends up behaving like a broken link. I only realized that it was not a broken link because I was busy trying to find someone to fix the broken link.

See merge request !6890

Use module_function in Banzai::Renderer

See merge request !6886

Validate user id for users select autcomplete

## What does this MR do?

Adds digit validation to user_id when build user autocomplete URL for select2. 

## Why was this MR needed?

To prevent building invalid URL for non existing users like  GET "/autocomplete/users/whatever@example.com.json".

As result it fixes failing test:

```
Feature: Admin Groups

  Scenario: Invite user to a group by e-mail
    ✔  Given I sign in as an admin                                                             # features/steps/shared/authentication.rb:11
    ✔  And I have group with projects                                                          # features/steps/admin/groups.rb:17
    ✔  And User "John Doe" exists                                                              # features/steps/shared/user.rb:4
    ✔  And I visit admin groups page                                                           # features/steps/shared/paths.rb:194
    ✔  When I visit admin group page                                                           # features/steps/admin/groups.rb:9
    ✔  When I select user "johndoe@gitlab.com" from user list as "Reporter"                    # features/steps/admin/groups.rb:48
    ✔  Then I should see "johndoe@gitlab.com" in team list in every project as "Reporter"      # features/steps/admin/groups.rb:63
/Users/dzaporozhets/.rvm/gems/ruby-2.3.1/gems/actionpack-4.2.7.1/lib/action_dispatch/middleware/debug_exceptions.rb:21:in `call': No route matches [GET] "/autocomplete/users/johndoe@gitlab.com.json" (ActionController::RoutingError)
```

See merge request !6889

Using `extend self` prevents GitLab Performance Monitoring from being
able to track class methods.

Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/23347

Single user autcomplete should be used only for existing users with
digital ID provided. Now js code puts any input into generating user URL
which can lead to 500 error because routing like this does not exists:

GET "/autocomplete/users/whatever@example.com.json".
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Add missing routes to make group edits work

6b90ccb9 changed the routes so that users/groups can be accessed via`/:id`, but the Rails `form_for` method expects to use the `groups#show` path helper for the form action URL. This causes group edits and deletes to fail because the PUT/PATCH/DELETE methods did not exist for `/:id`.  This MR adds these methods so that `form_for` continues to work.

Closes #23306 


See merge request !6874

Project members UI

## What does this MR do?

New UI for project members that includes groups.

## Screenshots (if relevant)


### Project members

![Screen_Shot_2016-09-02_at_15.13.27](/uploads/b9d4a634d44b7b7bbb6eddb10aee86bd/Screen_Shot_2016-09-02_at_15.13.27.png)

### Group members

![Screen_Shot_2016-09-02_at_15.13.36](/uploads/c15c173e68b2c0b49bcd06ca560269d3/Screen_Shot_2016-09-02_at_15.13.36.png)

## What are the relevant issue numbers?

Part of #19868 

Closes #21320 

See merge request !6148

Added 'No template' functionality to issuable templates

## What does this MR do?

Adds dropdown new footer item `.no-template`, when clicked it clears the `currentTemplate`, updates the editor and resets the dropdown toggle text.

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

## Why was this MR needed?

## Screenshots (if relevant)

![2016-10-10_03.21.45](/uploads/86ae95410807c66ce7b8be63c7ec2c20/2016-10-10_03.21.45.gif)

## Does this MR meet the acceptance criteria?

- [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)
- [ ] API support added
- Tests
  - [x] Added for this feature/bug
  - [x] All builds are passing
- [x] Conform by the [merge request performance guides](http://docs.gitlab.com/ce/development/merge_request_performance_guidelines.html)
- [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 it does - rebase it please)
- [x] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

## What are the relevant issue numbers?

Closes #22456

See merge request !6765

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Grapify boards API

## What does this MR do?

Add the Grape-DSL to the boards API.

## What are the relevant issue numbers?

Related to #22928

See merge request !6876

Updated issuable dropdown titles

## What does this MR do?

The dropdowns in the issuable form still had the filter dropdown titles, this fixes that by giving them their own titles.

Closes #23337

See merge request !6882

Fix grafana_configuration.md move link

See merge request !6871

Show deployed time ago

Closes #21652

cc @ayufan 

See merge request !6676

Reassign secret token when regenerating one

## What does this MR do?

This is an attempt to fix intermittent errors in out test suite.

```text
Failures:

  1) Gitlab::Shell memoized secret_token creates and links the secret token file
     Failure/Error: expect(File.read(secret_file).chomp).to eq(secret_token)
     
       expected: "690f959e206ab91acc54e1c605c7ff90"
            got: "cccb4e8df9360600271e61114d4e6e68"
     
       (compared using ==)
     # ./spec/lib/gitlab/backend/shell_spec.rb:47:in `block (3 levels) in <top (required)>'
```

It appears that `spec/lib/gitlab/backend/shell_spec.rb` tries to change the file that stores secret token, but `Gitlab::Shell` memoizes `@secret_token` on class level, so when it was already created by other tests (`spec/requests/api/internal_spec.rb` in this case), memoized token is not reassigned even if it was generated again with `ensure_secret_token!`.

See merge request !6844

Grapify todos API

## What does this MR do?

Add the Grape-DSL to the todos API.

## What are the relevant issue numbers?

Related to #22928

See merge request !6875