Backport GitLab domain helper methods

See merge request gitlab-org/gitlab-ce!18376

Don't reset application settings checkboxes when save another section

Closes #45343

See merge request gitlab-org/gitlab-ce!18366

Allow `rake cache:clear` clearing pipeline status cache

Closes #44582

See merge request gitlab-org/gitlab-ce!18257

Display relevant browser console output when an RSpec test fails.

See merge request gitlab-org/gitlab-ce!18355

There are 2 problems with this spec:

1. It checks for default visiblity level however there is not code in
controller to handle such default. Same check can be performed on model
directly.
2. It passes empty application_setting hash while controller requires
application_setting not to be empty by using `require` with `permit`
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Use stable docker image instead of latest

See merge request gitlab-org/gitlab-ce!18373

Update gitlab-svgs to 1.18.0

See merge request gitlab-org/gitlab-ce!18369

Resolve "Raw HTML is being shown on the MR page from Performance widget"

Closes #45353

See merge request gitlab-org/gitlab-ce!18370

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

Replacing gollum libs for custom gitlab ones

See merge request gitlab-org/gitlab-ce!18343

Remove bogus '|' symbol

See merge request gitlab-org/gitlab-ce!18313

Remove confirm box when redirecting to new merge request form in IDE

Closes #45326

See merge request gitlab-org/gitlab-ce!18362

If form does not have import sources checkboxes we should not reset
import sources to empty. This fixes issue when import sources got reset
after user modifies unrelated settings section like GitLab pages
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Fixed IDE sidebar not being scrollable in FireFox

Closes #45314

See merge request gitlab-org/gitlab-ce!18350

Changes the ID for the performance bar to correctly sticky the stat bar to the top

See merge request gitlab-org/gitlab-ce!18359

Closes #45326

Don't use "-f" with "rm" in Gitlab-Basics Docs

Closes #20071

See merge request gitlab-org/gitlab-ce!18027

Deprecate legacy disk paths

See merge request gitlab-org/gitlab-ce!18332

Feature/add language in repository to api

See merge request gitlab-org/gitlab-ce!17770

Add missing documentation about failure reason

Closes #45300

See merge request gitlab-org/gitlab-ce!18352

Fix reference filters in group context

See merge request gitlab-org/gitlab-ce!18340

Resolve "Weird "joined" information on project members page"

Closes #30739

See merge request gitlab-org/gitlab-ce!18290

Correct wrong buildpacks filename

See merge request gitlab-org/gitlab-ce!18336

Renamed 'Overview' to 'Project' in the contextual navigation at a project level

Closes #43430

See merge request gitlab-org/gitlab-ce!18295

Update the new frontend guide to specify the usage of d3

See merge request gitlab-org/gitlab-ce!18294

Update the dependencies license list for 10.7

See merge request gitlab-org/gitlab-ce!18339