Ensure Projects::ApproversController inherits from Projects::ApplicationController

Backport of !296.

See merge request !303

Fix gitlab-org/gitlab-ce#14503.

Change remaining usages of `has_toolitp` to `has-tooltip`

See merge request !301

See merge request !291

Fix an issue with methods not accessible in some controllers

Backport of !295 (actually I could have opened it against `master` at that time, I was probably confused by https://gitlab.com/gitlab-org/gitlab-ce/issues/14503#note_4386197).

I also cleaned the routing/controllers for audit_events and added
RSpec features specs.

@DouweM I addressed your remarks from https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/295. ;)

See merge request !298

Backport of !295.

I also cleaned the routing/controllers for audit_events and added
RSpec features specs.

Mark pending todos as done when approving a merge request

Closes #392 

See merge request !292

[ci skip]

Update links to new pages group.

Add updated links to pages docs.

See merge request !294

Only rename the column if its not there yet

The problem can only arise when upgrading from a CE version to an
 EE version after last months release as in that release the table
appearances was created. But when it was created we already took
care of this rename. Thus on an upgrade the migration will fail as
the column `light_logo` is not in the table, and `header_logo` already
is.

Thus this check solves it. 

@dblessing @DouweM 

BTW; should be included in the current release and the previous.

Fixes #406 

See merge request !290

The problem can only arise when upgrading from a CE version to an
 EE version after last months release as in that release the table
appearances was created. But when it was created we already took
care of this rename. Thus on an upgrade the migration will fail as
the column `light_logo` is not in the table, and `header_logo` already
is.

Thus this check solve this.

Unresolved conflicts:

- app/controllers/autocomplete_controller.rb
- app/services/merge_requests/build_service.rb
- app/views/layouts/notify.html.haml
- app/views/projects/_builds_settings.html.haml
- app/views/shared/issuable/_form.html.haml
- app/workers/post_receive.rb
- doc/ci/yaml/README.md
- spec/controllers/projects/issues_controller_spec.rb

Display nav controls on mobile

Set inputs inside .nav-controls to full-width on viewports below 600px

Fixes #13885

**Affected pages**


/dashboard/groups

/admin/builds

/dashboard/projects

/dashboard/issues

/dashboard/merge_requests

/dashboard/milestones

/dashboard/todos

/explore

/groups/{group-name}/issues

/groups/{group-name}

/groups/{group-name}/milestones

/{group-name}/{project-name}/builds

/{group-name}/{project-name}/forks

/{group-name}/{project-name}/issues

/{group-name}/{project-name}/labels

/{group-name}/{project-name}/merge_requests

/{group-name}/{project-name}/milestones

/{group-name}/{project-name}/wikis/home

/{group-name}/{project-name}/wikis/pages


Some Screenshots

**Groups**

![Screen_Shot_2016-03-15_at_2.22.23_PM](/uploads/b55348676693cc3ff67cddc4528f7f6c/Screen_Shot_2016-03-15_at_2.22.23_PM.png)


**Admin > Builds**

![admin-builds](/uploads/2e84119660f4895a1530883412c4b728/admin-builds.png)


**TODOs**

![todos](/uploads/84344c43011e22f902701038932d3eaa/todos.png)

**Dashboard > Projects**

![dashboards-projects](/uploads/f508d9107598038798aa10485d3d5cfe/dashboards-projects.png)


**Project Issues**

![issues](/uploads/d6c69a8f81ee07da95b2a3b99b81cf51/issues.png)


**Project Merge Requests**

![merge_requests](/uploads/b3c1a537f28931bd38077c36627a0d7a/merge_requests.png)


See merge request !3214

Shows error messages when trying to create label in dropdown menu

Closes #14495

![Screen_Shot_2016-03-22_at_14.46.10](/uploads/cdcaa51f4d41237f8027efbd0f894bcd/Screen_Shot_2016-03-22_at_14.46.10.png)

See merge request !3345

Fixes issue with assign milestone not loading milestone list

cc. @jschatz1 

See merge request !3346

Grafana installation and configuration documentation

Adding documentation for installing and configuring Grafana. This also includes providing dashboards users can import.

Fixes gitlab-org/omnibus-gitlab#1008

cc/ @axil

See merge request !3015

Reload the schema before restoring a database backup

If a user tries to downgrade and restore after a failed upgrade,
the database may still contain newer tables. Reload the older
schema before restoring the database to avoid future upgrade
problems. Also, add a rake task to help users add migration
versions to the database so it's easier to recover from these
errors if they do occur. Fixes #13419

See merge request !2807

User has to confirm deletion of issuables

Closes #14474

See merge request !3341

Closes #14495

[ci skip]

[ci skip]

Add docs on group visibility

Accompanying https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/3323

See merge request !3338

GitLab intro docs

Related to https://gitlab.com/gitlab-org/marketing_monthly_release/issues/1

---

Need refactor:

- Create a new project
- Create a new group
- Create a new issue
- Assign labels to issues
- Use milestones as an overview of your project's tracker
- Fork a project and contribute to it
- Create a new merge request
- Automatically close issues from merge requests (include GitLab.com pattern)
- GitLab CI quick start guide (make it easier to follow)

Moved to https://gitlab.com/gitlab-org/gitlab-ce/issues/8068

See merge request !3225

[ci skip]

[ci skip]

[ci skip]