Old deployments of Gitlab might have a big number of old events to be
deleted. Such numbers cause the worker to timeout.
I've limited the amount of rows that should be destroyed at once to
10000, and increased how often pruning shall take place to 4 times a
day.

Since contribution calendar shows only 12 months of activity,
events older than that time are not visible anywhere and can be
safely pruned saving big amount of database storage.

Fixes #21164

Replace animateEmoji timeout with eventListener

## What does this MR do?
Replaces the end animation timeout for awards_handler.js with an eventListener that listens for the animationEnd event

## Are there points in the code the reviewer needs to double check?
Check for any side effects

## Why was this MR needed?
Improve code quality so that it is easier to understand

## What are the relevant issue numbers?
Closes #20679 

## Does this MR meet the acceptance criteria?

- [x] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- Tests
  - [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 !5690

Pass dependencies to CI configuration nodes

## What does this MR do?

This MR makes it possible to pass dependencies to CI configuration nodes.

## What are the relevant issue numbers?

See #15060

## Does this MR meet the acceptance criteria?

- Tests
  - [x] Added for this feature/bug
  - [x] All builds are passing

See merge request !6009

Fix merge conflict size limit

## What does this MR do?

The merge conflict size limit was set to 100 KB, but the docs (and the test repo, which the feature specs use) say 200 KB!

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

Don't think so.

## Why was this MR needed?

Derp.

## 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)
- Tests
  - [x] Added for this feature/bug
  - [ ] 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 !6052

Escape search terms before passing to Regexp

## What does this MR do?

Use `Regexp.escape` to escape the search terms before passing them to `Regexp.new`.

## Why was this MR needed?

- evaluated regular expressions in search terms lead to unexpected result
- unbalanced parentheses in search term lead to server error 

## TODO

- [ ] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added

## What are the relevant issue numbers?

fixes #14360

See merge request !6241

Use PipelinesFinder in Pipelines API

## What does this MR do?

Sort output for the API endpoint, and uses the PipelinesFinder there.

## 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)

## What are the relevant issue numbers?
Closes #21566

See merge request !6094

Fix styling of shortcuts modal

## What does this MR do?

Fixes some weird height issue in the shortcuts modal.

## Screenshots (if relevant)

### Before

![Screen_Shot_2016-09-07_at_15.13.09](/uploads/5c4d7716e355794c8aa9764e0fa53f4e/Screen_Shot_2016-09-07_at_15.13.09.png)

### After

![Screen_Shot_2016-09-07_at_15.12.57](/uploads/6f5c145963b4b89910be44b6b254e117/Screen_Shot_2016-09-07_at_15.12.57.png)

See merge request !6244

Add issues filters reset btn

## What does this MR do?

Adds a button to the issues filter to reset all filters. I also lightly refactored a nearby method.

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

At the moment, the user can click the reset button even when no filters have been set. I didn't really like how it looked flashing the link on and off depending on whether a user had added a filter. I prefer having it there all the time, so the user is aware of it. But it wouldn't be difficult to hide if no filters have been set, if that's preferred.

## Why was this MR needed?

So users can reset filters when they're filtering issues.

## What are the relevant issue numbers?

https://gitlab.com/gitlab-org/gitlab-ce/issues/14016

## Screenshots (if relevant)

![reset-filters](/uploads/562916158ce7b0179794e19f88f5c2e3/reset-filters.png)

## 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 !5330

Fix: Switch sample values for $CI_SERVER_REVISION and $CI_SERVER_VERSION.

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

## What does this MR do?

There is a sample in this document showing the possible values of the predefined CI variables. Those of **CI_SERVER_REVISION** and **CI_SERVER_VERSION** were mixed up. I fixed that.

See merge request !6243

API for CI Lint

## What does this MR do?
Add API for CI Lint. Can check if `.gitlab-ci.yml` content is valid.

## What are the relevant issue numbers?
Closes #15571 

## Does this MR meet the acceptance criteria?

- [x] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- [x] API support added
- [x] Documentation
- Tests
  - [x] Added for this feature/bug
  - [x] All builds are passing

cc @ubudzisz @grzesiek @yorickpeterse

See merge request !5953

Issue #21440: Small fix to curl example for adding member to project

## What does this MR do?
Two lines changed in docs to move the user_id field out of the url and onto the query string 

## Why was this MR needed?
Issue #21440 reported under Issues. The documentation example for adding members to a project had a slight problem. 

## What are the relevant issue numbers?
Closes #21440.

See merge request !6236

Gitlab -> GitLab

## What does this MR do?
Fix GitLab capitalization

See merge request !6235