Remove Content-Type override for Mattermost OAuth login

Closes #46810

See merge request gitlab-org/gitlab-ce!28374

Upgrade dependencies for node 12 compatibility

Closes #61629, #61631, and #61380

See merge request gitlab-org/gitlab-ce!28323

Replace deprecated Oxygen-Sans font with  Noto Sans

See merge request gitlab-org/gitlab-ce!28322

Add extra checks for ci_id migration

See merge request gitlab-org/gitlab-ce!28404

Increase Jest timeout to 500ms

See merge request gitlab-org/gitlab-ce!28383

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

Add Pool repository to the usage ping

See merge request gitlab-org/gitlab-ce!28267

PoolRepository is a relatively new model of which the counts could help
to further determine the priority of new features. Also gives some
insight into the number of forks customers have.

Stop configuring group clusters on creation

Closes #60379

See merge request gitlab-org/gitlab-ce!27245

Edit comments in CI template

See merge request gitlab-org/gitlab-ce!28342

Remove extra ending line from unicorn example file

See merge request gitlab-org/gitlab-ce!28388

Resolve CE/EE diffs in group general settings

See merge request gitlab-org/gitlab-ce!28363

Resolve CE/EE diffs in admin groups form

Closes gitlab-ee#11042

See merge request gitlab-org/gitlab-ce!28365

Resolve CE/EE diffs in protected branches

Closes gitlab-ee#11034

See merge request gitlab-org/gitlab-ce!28362

Make ApplicationData a plain module include

Closes #60550

See merge request gitlab-org/gitlab-ce!28387

Fix incorrect prefix used in new uploads for personal snippets

Closes #61671

See merge request gitlab-org/gitlab-ce!28337

SSO enforcement docs details added from 11.11

See merge request gitlab-org/gitlab-ce!28394

https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/24550 fixed the
case where the wrong path on disk was being searched, but it
inadvertently ommitted the `/uploads/-/system` prefix when rendering the
Markdown for personal snippet uploads when they were stored directly in
object storage.

A personal snippet path is stored using FileUploader#upload_path.
The format for the path:

Local storage: :random_hex/:filename.
Object storage: personal_snippet/:id/:random_hex/:filename.

upload_paths represent the possible paths for a given identifier,
which will vary depending on whether the file is stored in local or
object storage. upload_path should match an element in upload_paths.

base_dir represents the path seen by the user in Markdown, and it
should always be prefixed with uploads/-/system.

store_dirs represent the paths that are actually used on disk. For
object storage, this should omit the prefix /uploads/-/system.

For example, consider the requested path
/uploads/-/system/personal_snippet/172/ff4ad5c2/file.png.

For local storage:

base_dir: uploads/-/system/personal_snippet/172
upload_path: ff4ad5c2/file.png
upload_paths: ["ff4ad5c2/file.png", "personal_snippet/172/ff4ad5c2/file.png"].
store_dirs: {1=>"uploads/-/system/personal_snippet/172/ff4ad5c2",
             2=>"personal_snippet/172/ff4ad5c2"}

For object storage:

upload_path: personal_snippet/172/ff4ad5c2/file.png

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/61671

Add ref (branch/tag) parameter to project search API

See merge request gitlab-org/gitlab-ce!28069

#46469 - Added ref querystring parameter to project search to allow searching on branches other than master

Update haml_lint to include linter spec helpers

Closes #61892

See merge request gitlab-org/gitlab-ce!28379

Clean up assets that are older than 4 days to reduce assets cache size

See merge request gitlab-org/gitlab-ce!28318

Docs: Update links and add badge to examples readme

Closes #61439

See merge request gitlab-org/gitlab-ce!28349

Update CI minutes docs regarding transferring of minutes and billing

See merge request gitlab-org/gitlab-ce!28293

Immediate configuration is not ideal for group and instance
level clusters as projects that may never be deployed would
still have Kubernetes namespaces and service accounts created
for them.

As of https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/25586
we now create only the resources that are required for the
project being deployed, at the time of deployment.

Docs: Add badges and fix redirect style in 3 docs

Closes #61440

See merge request gitlab-org/gitlab-ce!28350

Docs: Update links and add badge to examples readme

Closes #61439

See merge request gitlab-org/gitlab-ce!28349

Docs: Delete orphaned images in `merge_requests/img`

Closes #61438

See merge request gitlab-org/gitlab-ce!28346

Resync the docs that were submitted to EE instead of CE

See merge request gitlab-org/gitlab-ce!28389

Fix emojis URLs

Closes #61914

See merge request gitlab-org/gitlab-ce!28371

Add subheadings to components page

See merge request gitlab-org/gitlab-ce!28382

Fix docs intro version for force auth for approvers

See merge request gitlab-org/gitlab-ce!28390

This feature was introduced in 12.0, not in 11.11.