Fix validations related to mirroring settings form.

Some of our users are changing to GitLab as their main repository, it
means that they're disabling the local mirror and setting up a remote
mirror instead. This fix helps to avoid the extra steps required in order
to achieve the desired configuration.

Closes: gitlab-com/support-forum#1044 gitlab-org/gitlab-ee#1062

Related: gitlab-org/gitlab-ce#17940

Also the UI has been modify to have a single update button:

#### Before
![1](/uploads/83c1d614a35911740154d4167f77f6a0/1.png)

#### After

![2](/uploads/87f73a32c35d7fe83558932cdc1a21d7/2.png)

See merge request !773

Fix dead link in docs README

Repository size limit docs were introduced by
https://gitlab.com/gitlab-org/gitlab-ee/commit/9cd2f585b0ddd74de01256d9b247245a44eaa49f

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/23076

See merge request !787

Repository size limit docs were introduced by
https://gitlab.com/gitlab-org/gitlab-ee/commit/9cd2f585b0ddd74de01256d9b247245a44eaa49f

[ci skip]

CE->EE merge before 8.13.0-rc1

Conflicts resolved in the first merge:

```
UU app/models/group.rb
UU app/models/member.rb
UU app/models/project_team.rb
UU app/services/merge_requests/update_service.rb
UU app/services/notification_service.rb
UU app/views/shared/_sort_dropdown.html.haml
UU doc/api/oauth2.md
UU lib/api/members.rb
UU spec/models/merge_request_spec.rb
AA spec/views/ci/lints/show.html.haml_spec.rb
UU app/views/projects/commits/_head.html.haml
```

Conflicts resolved in the second merge:

```
UU app/assets/javascripts/groups_select.js
UU app/assets/javascripts/labels_select.js
UU app/controllers/concerns/membership_actions.rb
UU app/controllers/groups/group_members_controller.rb
UU app/helpers/selects_helper.rb
UU app/views/admin/dashboard/index.html.haml
UU app/views/shared/issuable/_form.html.haml
UU app/views/shared/issuable/_label_dropdown.html.haml
UU app/views/shared/issuable/_sidebar.html.haml
UU config/routes.rb
UU spec/services/merge_requests/merge_service_spec.rb
UU spec/services/system_note_service_spec.rb
```

See merge request !772

Signed-off-by: Rémy Coutable <remy@rymai.me>

Signed-off-by: Rémy Coutable <remy@rymai.me>

Remove duplicate integration entry

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/23028

See merge request !783

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/23028

[ci skip]

Signed-off-by: Rémy Coutable <remy@rymai.me>

Signed-off-by: Rémy Coutable <remy@rymai.me>

Signed-off-by: Rémy Coutable <remy@rymai.me>

Signed-off-by: Rémy Coutable <remy@rymai.me>

Signed-off-by: Rémy Coutable <remy@rymai.me>

Don't allow flay to fail.

It's passing now so there's no reason to have it set to allow failure anymore.

See merge request !6707

Signed-off-by: Rémy Coutable <remy@rymai.me>

Signed-off-by: Rémy Coutable <remy@rymai.me>

Signed-off-by: Rémy Coutable <remy@rymai.me>

Some of our users are changing to GitLab as their main repository, it
means that they're disabling the local mirror and setting up a remote
mirror instead. This fix helps to avoid the extra steps required in order
to achieve the desired configuration.

Prevent flash alert text from being obscured when container is fluid

## What does this MR do?

Fixes [a regression](https://gitlab.com/gitlab-org/gitlab-ce/commit/a2af7790) that causes the text within server-initiated flash *alerts* (not flash *notices*) to be obscured when `.container-fluid` is applied. It was reported in relation to a cherry-picking flash alert, but the problem occurs with all server-initiated flash alerts contained by a fluid container. 

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

Note that as part of this fix, I combined some duplicate code and removed `.flash-text` & `.content-wrapper` selectors as they didn't seem to be necessary.
 
I manually tested JS-initiated Flash alerts to make sure this doesn't affect their appearance. I also grepped around for anything else that might depend on these styles. Everything checked out. But... can *you* see something this is going to break?

## Why was this MR needed?

Affected users can't read flash alerts.

## Screenshots (if relevant)

Before:
![Screen_Shot_2016-10-05_at_3.02.38_PM](/uploads/af258585e428d82dc2b293434661790b/Screen_Shot_2016-10-05_at_3.02.38_PM.png)

After:
![Screen_Shot_2016-10-05_at_3.02.47_PM](/uploads/75a93235440e2b83088e66bbe53d6cee/Screen_Shot_2016-10-05_at_3.02.47_PM.png)

JS-initiated flash alert (unaffected):
![Screen_Shot_2016-10-05_at_3.39.57_PM](/uploads/ba678cfaeb09c639499059712a33abe8/Screen_Shot_2016-10-05_at_3.39.57_PM.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
  - [] Added for this feature/bug
  - [ ] 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 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?

https://gitlab.com/gitlab-org/gitlab-ce/issues/22915

cc: @jschatz1 

See merge request !6694

Updated issuable form with GL dropdowns

## What does this MR do?

This adds back in the GL dropdowns into the issuable form but fixes a lot of usability issues & bugs.

## What are the relevant issue numbers?

Closes #19879, #19882, #19881, #19883, #19880 

## Screenshots (if relevant)

![Screen_Shot_2016-08-30_at_12.13.09](/uploads/f1df758b3fb59958b4e6b62960b81bfb/Screen_Shot_2016-08-30_at_12.13.09.png)

![Screen_Shot_2016-08-30_at_12.13.13](/uploads/6e4fd8f4d874b14eaab6b10752a19df4/Screen_Shot_2016-08-30_at_12.13.13.png)


See merge request !5293

fix group links 404

### What does this MR do?
This MR should fix the 404 page, when creating a new group links without selecting any group from the group dropdown list.

### What are the relevant issue numbers?
Closes #20766

See merge request !6155

Correctly parse the date of artifact expiring

## What does this MR do?

Previously the JS was just replacing `-` with `/` however this was breaking when there is a timezone offset.

## What are the relevant issue numbers?

Closes #19600

See merge request !6697

Cleanup config/routes.rb even further by extracting more routes into separate files

Next step after https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/6692

See merge request !6698

# Conflicts:
#	app/assets/javascripts/dispatcher.js

See !6474.

added 245px max height and overflow scroll-y to .grouped-pipeline-dropdown

## What does this MR do?
It restricts the sub builds popup in the pipeline graph and makes it scrollable

## Are there points in the code the reviewer needs to double check?
none that I know of

## Why was this MR needed?
To restrict crazy CI configurations from messing with the viewport scrolling.

## Screenshots (if relevant)
![2016-10-05_16.29.35](/uploads/0ce1d8e4d46ec45e181919dd968a80cf/2016-10-05_16.29.35.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
  - [ ] 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 you do - 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?

Closes #22295

See merge request !6696

19499 Update project dropdowns

## What does this MR do?
Separates dropdowns on project homepage and makes caret icon consistent.

## Screenshots (if relevant)

Before:
![Screen_Shot_2016-10-04_at_6.20.27_PM](/uploads/76823e3836db43a60cfcabd67940659f/Screen_Shot_2016-10-04_at_6.20.27_PM.png)

After:
![Screen_Shot_2016-10-04_at_6.19.52_PM](/uploads/164e40e1788b1d6a8aed29ab3348370a/Screen_Shot_2016-10-04_at_6.19.52_PM.png)

## 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 you do - 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?
Closes #19499

See merge request !6687

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

Refactor TrendingProjectsFinder to support caching

## What does this MR do?

This refactors `TrendingProjectsFinder` so it can support caching of the data. See cb7d398972d786ba7133418266fa34ae641b2497 for more details.

## Why was this MR needed?

Trending projects is quite slow, easily taking seconds to load the entire page.

https://gitlab.com/gitlab-org/gitlab-ce/issues/22164

https://gitlab.com/gitlab-com/infrastructure/milestones/4, in particular the section "Trending page under 2s"

See merge request !6672

Previously it was just replacing dashes which would remove the timezone offset causing the date to be invalid

Closes #19600

Split routes on multiple files

Because current 1k routing file is just impossible to read and manage. 

See merge request !6692

== Public Projects

This finder class now _only_ returns public projects. Previously this
finder would also return private and internal projects. Including these
projects makes caching data much harder and less efficient. Meanwhile
including this data isn't very useful as very few users would be
interested in seeing projects they have access to as trending. That is,
the feature is more useful when you want to see what _other_ popular
projects there are.

== Caching

The data returned by TrendingProjectsFinder is now cached for a day
based on the number of months the data should be restricted to. The
cache is not flushed explicitly, instead it's rebuilt whenever it
expires.

== Timings

To measure the impact I changed the finder code to use the last 24
months instead of the last month. I then executed and measured 10
requests to the explore page. On the current "master" branch (commit
88fa5916) this would take an average of
2.43 seconds. Using the changes of this commit this was reduced to
around 1.7 seconds.

Fixes gitlab-org/gitlab-ce#22164

Refactor remnants of CoffeeScript destructured opts and super into ES6

## What does this MR do?

Gets rid of some CoffeeScript remnants that are difficult to work with, and updates them to use ES6 syntax/constructs. I updated nearby code to ES6, but these updates usually just included using the es6 class syntax and scoped variable keywords. 

**Important**: For the most part, I tried to avoid refactoring the design of the existing code. If I attempted that, this would've taken much much longer and it would've been out of this issue's scope. 

## Why was this MR needed?

The compiled coffeescript for destructured default params is very difficult to work in. 

These changes makes some of these rough patches more maintainable:

e.g.
![Screen_Shot_2016-09-19_at_4.43.08_PM](/uploads/40cd3f79b9c5f595f3738213b0dadbbf/Screen_Shot_2016-09-19_at_4.43.08_PM.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 [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 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?

Meta Issue: 
https://gitlab.com/gitlab-org/gitlab-ce/issues/21887

Child Issues: 

https://gitlab.com/gitlab-org/gitlab-ce/issues/21942

https://gitlab.com/gitlab-org/gitlab-ce/issues/21941

https://gitlab.com/gitlab-org/gitlab-ce/issues/21943

## To Test Manually: 

#### app/assets/javascripts/LabelManager.js.es6 -> [diff](https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/6261/diffs#diff-1)
- Navigate to [Labels](http://localhost:3000/gitlab-org/gitlab-test/labels) and click around (toggle label priority, add new labels, subcribe, edit, delete)

#### app/assets/javascripts/blob/blob_ci_yaml.js.es6  -> [diff](https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/6261/diffs#diff-3)
- [Create new file](http://localhost:3000/gitlab-org/gitlab-test/new/master) and give it the name `.gitlab-ci.yml`, then attempt to select a template

#### app/assets/javascripts/blob/blob_license_selectors.js.es6 -> [diff](https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/6261/diffs#diff-7)
- [Create new file](http://localhost:3000/gitlab-org/gitlab-test/new/master) and give it the name `license`, then attempt to select a template

#### app/assets/javascripts/blob/template_selector.js.es6 -> [diff](https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/6261/diffs#diff-8)
- This class is extended by the two previously mentioned files. As long as they work, this should work.

#### app/assets/javascripts/issues-bulk-assignment.js.es6 -> [diff](https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/6261/diffs#diff-11)
- [Visit issues](http://localhost:3000/gitlab-org/gitlab-test/issues), assign multiple issues a new label or milestone and update.

#### app/assets/javascripts/profile/gl_crop.js.es6 -> [diff](https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/6261/diffs#diff-12)
- [Visit your profile settings](http://localhost:3000/profile), upload a photo and attempt to crop and set as new profile picture.

#### app/assets/javascripts/profile/profile.js.es6 > [diff](https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/6261/diffs#diff-14)
- [Visit your profile settings](http://localhost:3000/profile), change various fields (Name, Bio, Email, Notifs settings) and submit form

#### app/assets/javascripts/todos.js.es6 -> [diff](https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/6261/diffs#diff-18)
- [Visit an issue](http://localhost:3000/documentcloud/underscore/issues/6) and Add Todo, then visit [Todos](http://localhost:3000/dashboard/todos). Try out the sorting features, making sure everything looks right. Mark the Todo done. 

#### app/assets/javascripts/user.js.es6 -> [diff](https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/6261/diffs#diff-19)
- [Visit user profile](http://localhost:3000/u/root) and click between tabs. 

#### app/assets/javascripts/user_tabs.js.es6 -> [diff](https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/6261/diffs#diff-20)
- Same as previous.

cc: @jschatz1

See merge request !6261