Update gitlab-shell version to 3.6.6

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/23659

See merge request !7118

[ci skip]

Fix events order in users/:id/events endpoint

Order of events in contributions API is currently being lost, though docs are saying:

> Get the contribution events for the specified user, sorted **from newest to oldest**.

Order becomes different after `.merge(ProjectsFinder.new.execute(current_user))` call, so I moved ordering below this line.

This MR also removes extra `.page(params[:page])` call in the method chain, since [`paginate(events)` already does it](https://gitlab.com/airat/gitlab-ce/blob/master/lib/api/helpers.rb#L112).

See merge request !7039
Signed-off-by: Rémy Coutable <remy@rymai.me>

Don't schedule ProjectCacheWorker unless needed

This MR changes `ProjectCacheWorker.perform_async` so scheduling only takes place when needed. See the commits for more details.

See merge request !7099
Signed-off-by: Rémy Coutable <remy@rymai.me>

Reduce overhead of LabelFinder by avoiding #presence call

Some users experienced 502 timeouts when viewing group labels.
Labels#open_issues_count and Label#open_merge_requests_count were
taking a long time to load because they were loading every ActiveRecord
of the user-accessible projects into memory. This change modifies so
that only the IDs are loaded into memory.

Closes #23684

See merge request !7094
Signed-off-by: Rémy Coutable <remy@rymai.me>

Stop appending templates - Temporary fix

This is the temporary fix for #23315. This stops the templates appending to any existing text.

See merge request !7050
Signed-off-by: Rémy Coutable <remy@rymai.me>

This will change the update process to checkout gitlab-shell version 3.6.6 instead of 3.6.3 as currently described in the update document

See merge request !6976

Fix branch protection API.

- Fixes the branch protection API.
- Closes #21513
- EE Merge Request: gitlab-org/gitlab-ee!718

See merge request !6215
Signed-off-by: Rémy Coutable <remy@rymai.me>

Stop unauthorized users dragging on issue boards

Closes #23763

See merge request !7096
Signed-off-by: Rémy Coutable <remy@rymai.me>

Fix `User#to_reference`

Fix the method signature of `User#to_reference` so that moving an issue with a user reference does not throw a "invalid number of arguments" exception.

1. Changes in 8.13 require `Referable`s that don't have a project
   reference to accept two arguments - `from_project` and
   `target_project`.

2. `User#to_reference` was not changed to accept the
   `target_project` (even though it is not used). Moving an issue
   containing a user reference would throw a "invalid number of
   arguments" exception.

3. The regression was introduced in [c8b2b3f7](https://gitlab.com/gitlab-org/gitlab-ce/commit/c8b2b3f7c32db873f1bebce3e3b1847ea24d235f#91fabb7ad88bd2fde6fef1c100a719c00e503047_75_79), which expects
   all `Referable`s that don't respond to `:project` to have a `to_reference`
   method that takes two arguments.

Closes #23662

See merge request !7088
Signed-off-by: Rémy Coutable <remy@rymai.me>

Fix constrainers for relative url

Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/23675

See merge request !7071
Signed-off-by: Rémy Coutable <remy@rymai.me>

Fix reply-by-email not working due to queue name mismatch

See merge request !7068
Signed-off-by: Rémy Coutable <remy@rymai.me>

Fix bug where labels would be assigned to issues that were moved

If you attempt to move an issue from one project to another and leave
labels blank, LabelsFinder would assign all labels in the new project
to that issue. The issue is that :title is passed along to the Finder,
but since it appears empty no filtering is done. As a result, all
labels in the group are returned. This fix handles that case.

Closes #23668

See merge request !7065
Signed-off-by: Rémy Coutable <remy@rymai.me>

See merge request !7064
Signed-off-by: Rémy Coutable <remy@rymai.me>

Only show register tab if signup enabled.

Fixes a regression where the register tab is activated, even if sign-up enabled is not activated in application_settings.

https://gitlab.com/gitlab-org/gitlab-ce/issues/23654

See merge request !7058
Signed-off-by: Rémy Coutable <remy@rymai.me>

Stop clearing the database cache on rake cache:clear

See merge request !7056
Signed-off-by: Rémy Coutable <remy@rymai.me>

Fix error in generating labels

Attempting to generate default set of labels would result in
an error:

ArgumentError: wrong number of arguments (given 1, expected 0)

Closes #23649

See merge request !7055
Signed-off-by: Rémy Coutable <remy@rymai.me>

This MR removes an odd line for empty description

Closes #23557 #23695

See merge request !7045
Signed-off-by: Rémy Coutable <remy@rymai.me>

Fixes #23575

See merge request !7037
Signed-off-by: Rémy Coutable <remy@rymai.me>

Refactor and add new environment functionality to CI yaml reference

Add new `environment` functionality to the yaml reference.

Part of https://gitlab.com/gitlab-org/gitlab-ce/issues/23484

See merge request !7026
Signed-off-by: Rémy Coutable <remy@rymai.me>

Use root_url for issue boards user link

Rather than using `/` as the root path, it now correctly sends the root URL from Rails to prevent errors with installations in subdirectories.

Closes #23556

See merge request !7018
Signed-off-by: Rémy Coutable <remy@rymai.me>

Support LDAP login tabs wrapping to second line (and a few other login fixes)

Fixes some regressions introduced for customers with multiple servers configured for login and/or long label names.

Also, improves styling for the login page on small screens.

See the bad behavior here: https://gitlab.com/gitlab-org/gitlab-ce/issues/23435#note_17117893

https://gitlab.com/gitlab-org/gitlab-ce/issues/23435#note_17117677

See merge request !6993
Signed-off-by: Rémy Coutable <remy@rymai.me>

Resolve "Cycle analytics date filter is not working"

Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/22892

See merge request !6906
Signed-off-by: Rémy Coutable <remy@rymai.me>

Fix pipeline graph hidden on commit and mr pages

## What does this MR do?

Dynamically invokes `new gl.Pipelines();` when an MR `builds` tab is clicked.

Dispatches `new gl.Pipelines();` on a `commit#builds` page.

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

## Why was this MR needed?

The pipeline graph was hidden on commit and mr pages

## Screenshots (if relevant)

Commit page:
![Screen_Shot_2016-10-14_at_18.16.18](/uploads/ee11dea0825d1489dc167292e16c8f41/Screen_Shot_2016-10-14_at_18.16.18.png)

MR:
![Screen_Shot_2016-10-14_at_18.16.39](/uploads/602c2fce2397c799bedb757bfd3010af/Screen_Shot_2016-10-14_at_18.16.39.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 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?

Closes #23325

See merge request !6895
Signed-off-by: Rémy Coutable <remy@rymai.me>

Fix bug where e-mails were not being sent out via Sidekiq

Fix bug where e-mails were not being sent out via Sidekiq

By default, ActionMailer uses the "mailers" queue, but this entry
was not included in the list of queues for Sidekiq to use.

For more details:

* https://github.com/plataformatec/devise/wiki/How-To:-Send-devise-emails-in-background-(Resque,-Sidekiq-and-Delayed::Job)
* http://guides.rubyonrails.org/active_job_basics.html

See merge request !7053

This reverts commit eb54c711.

Don't autolink unsafe protocols

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/23153

See merge request !2013

Use separate queues for all Sidekiq workers

## What does this MR do?

This MR updates all workers so that they (mostly) use their own Sidekiq queues. This in turn allows us to monitor queues more accurately and in the future impose queue specific throttles, limits, etc.

This is a critical part we need in 8.13, despite it being so close to release day.

See https://gitlab.com/gitlab-org/gitlab-ce/issues/23370 for more information.

## Does this MR meet the acceptance criteria?

- [x] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG.md) entry added
- [x] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)
- [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?

https://gitlab.com/gitlab-org/gitlab-ce/issues/23370

See merge request !7006

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

Fixed compare ellipsis messing with layout

## What does this MR do?

Fixed a bug where the ellipsis would cause the form to mess with the layout.

## Screenshots (if relevant)

![Screen_Shot_2016-10-21_at_13.45.37](/uploads/d1dc18d294dace599b8036541b70ccaf/Screen_Shot_2016-10-21_at_13.45.37.png)

See merge request !7042

Change "Group#web_url" to return "/groups/twitter" rather than "/twitter"

Fixes #23527

See merge request !7035

Disable warming of the asset cache in Spinach tests under CI

I suspect some combination of Knapsack tests cause no regular Rack tests
to be loaded (i.e. all JavaScript tests), which leads to the error:

ArgumentError: rack-test requires a rack application, but none was given

In CI, we precompile all the assets so there is no need to warm the
asset cache in any case.

Closes #23613

See merge request !7033

Fix broken label uniqueness label migration

The previous implementation of the migration failed on staging because
the migration was attempted to remove labels from projects that did not
actually have duplicates. This occurred because the SQL query did not
account for the project ID when selecting the labels.

To replicate the problem:

1. Disable the uniqueness validation in app/models/label.rb.
2. Create a duplicate label "bug" in project A.
3. Create the same label in project B with label "bug".

The migration will attempt to remove the label in B even if there are no duplicates.

To fix the issue, include the project ID when selecting the labels.

Closes #23609

See merge request !7030

Use iid deployment refs

This fixes the 404, because `find_by` will return nil instead of throwing an error.

See merge request !7021

Ignore external issues when bulk assigning issues to author of merge request.

Fixes #23552

See merge request !7020