Add test for search page

Closes #15222

See merge request !3711

Redis configuration consistency

Related https://gitlab.com/gitlab-org/gitlab-ce/commit/cf669551f69edd66913d22c96cf1de1302e7990e

See merge request !3697

Hide top search form on the search page

Closes #14771

![Screen_Shot_2016-04-11_at_6.04.19_PM](/uploads/44cf2110bad29c0df06d874740a3a61f/Screen_Shot_2016-04-11_at_6.04.19_PM.png)

See merge request !3668

Set tooltips for new added labels

Fixes #15093 

![Screen_Shot_2016-04-11_at_5.50.21_PM](/uploads/52d06f6ccb3ca42e7ce75b94111514c2/Screen_Shot_2016-04-11_at_5.50.21_PM.png)

See merge request !3667

Update delete button

Closes #14762 

![Screen_Shot_2016-04-11_at_5.21.32_PM](/uploads/fef09645eb70fc0fcaee359245664ddc/Screen_Shot_2016-04-11_at_5.21.32_PM.png)

See merge request !3665

Fixed alignment on issuable new form

Fixes #13802

![Screen_Shot_2016-04-11_at_17.03.29](/uploads/d359580e693284d4b694d8158d4f736e/Screen_Shot_2016-04-11_at_17.03.29.png)

See merge request !3661

Updated InfluxDB/Grafana setup/import docs

See https://gitlab.com/gitlab-org/grafana-dashboards/merge_requests/1 for some background info.

cc @dblessing 

See merge request !3706

Clean up ExclusiveLease

See merge request !3695

Fix a bug with trailing slash in bamboo_url

Also, improve specs for BambooService

Similar to !3679.

See merge request !3680

Fix trailing slash in teamcity_url

Originally opened at !2309 by @ctmay4.

As described in #3515, if you have trailing spaces in the the Teamcity server name, the service
will not work properly.  Switching from `URI.parse` to `URI.join` fixes it so that it works with
or without a trailing slash.

Fixes #3515.

See merge request !3679

Load related MRs/branches asynchronously

cc @dzaporozhets 

See merge request !3678

Make milestone labels in labels tab similar to that of the labels page

I realized that some of the changes for the labels page was not reflecting in the labels list in milestone page.

## Desktop
![Screen_Shot_2016-04-11_at_4.25.36_PM](/uploads/e21f3c5a9187fe32472e796171781b5d/Screen_Shot_2016-04-11_at_4.25.36_PM.png)

## Mobile
![Screen_Shot_2016-04-11_at_4.26.47_PM](/uploads/5c9f75ca0938fc30ab47c5520215f692/Screen_Shot_2016-04-11_at_4.26.47_PM.png)


See merge request !3658

API: Subscribe and unsubscribe from issues and merge requests

* Closes #6024 

This MR is based on !3611, which must be merged first.


See merge request !3615

The grafana-dashboards repository now contains _all_ GitLab.com
dashboards and thus requires some extra continuous queries to be set up.
The repository now also provided a way to automatically import/export
dashboards.

[ci skip]

Fix high CPU usage when PostReceive receives refs/merge-requests/<id>

Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/12661


See merge request !3651

Currently this works by loading the HAML partials via XHR. While this is
not the nicest setup it _is_ the easiest setup using the tools we
currently have.

Loading this data asynchronously doesn't make loading the related
MRs/branches itself faster, it merely ensures that loading the issue
itself is not slowed down.

Fixes gitlab-org/gitlab-ce#14949

API: Star and unstar a project

Add two new endpoints `POST /projects/:id/star` and `POST /projects/:id/unstar` to star and unstar a project.

* Closes #12739


See merge request !3578

Fix bug causing comment form in issue to submit twice when CTRL+Enter is pressed twice



See merge request !3655

Remove Bootstrap Carousel

The Bootstrap carousel module is used for image carousels, and we don't
use it anywhere on the site.

Fixes #14670.

See merge request !3624

Instrument the HousekeepingService class

I'm starting with instrumenting this class as mentioned in https://gitlab.com/gitlab-org/gitlab-ce/issues/15094#note_4796278.

See merge request !3701

Fix Grafana docs and link from Influx page

Fixing images and adding links to Influx docs, as suggested by @sytses 

See merge request !3702

Also, improve specs for BambooService

Similar to https://gitlab.com/gitlab-org/gitlab-ce/issues/3515Signed-off-by: NRémy Coutable <remy@rymai.me>

This allows us to track how much time is spent in updating the
"pushes_since_gc" column as well as the time needed to obtain the lease.

Fixed not being able to filter by any or no labels

Brings back the options to filter by any or no label

Closes #15008 

![Screen_Shot_2016-04-07_at_11.26.41](/uploads/20d949b19f537d830118532e1d44feb7/Screen_Shot_2016-04-07_at_11.26.41.png)

See merge request !3589

Allow Omniauth providers to be marked as external

Related to #4009 

With this MR we will be able to allow the user to set which Omniauth Providers they would like to have as external. All users login in via these providers will be marked as external, even if they already had an account before. If the provider is removed form the list of external providers, the users will be marked as internal at their next login.

MR for Omnibus: gitlab-org/omnibus-gitlab!727

/cc @dblessing @DouweM 

See merge request !3657

Move RepositoryArchiveCacheWorker to sidekiq-cron

Closes #15105

See merge request !3663

Add `Gitlab.com?` method

To be used as a feature flag for GitLab.com-only features, such as
welcome emails.

We will be careful to only use this to disable features or functionality
that do not make sense for any installations that aren't GitLab.com. We
will not use this to restrict features from other installations or keep
them "exclusive" to GitLab.com.

See merge request !3682

(doc) fix typo to ssh keys doc url