Merge Request file tree

Closes #14249

See merge request gitlab-org/gitlab-ce!21833

Remove Gitlab::Git::Repository#rugged

See merge request gitlab-org/gitlab-ce!22039

This file tree displays all the diff files in a tree like format
Each file is taken and converted into a tree with folders
Each folder can be toggled open & closed
Clicking a file will scroll to the diff file & highlight with a glow affect

Searching the tree list will search only files & return a list of the
files without any folders

Each file row contains an icon to show changed, new file or deleted
Each row will also contain the added & removed lines count

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/14249

Port Jira integration documentation update to CE

Closes #50505

See merge request gitlab-org/gitlab-ce!22062

Fix props name casing in time time tracker vue component

Closes #45977 and #51699

See merge request gitlab-org/gitlab-ce!21889

Add copy to clipboard button for application id and secret

See merge request gitlab-org/gitlab-ce!21978

#13650 added wip search functionality and tests

See merge request gitlab-org/gitlab-ce!18119

Extract status count key to a method

See merge request gitlab-org/gitlab-ce!22021

Add more introductory information to Review Apps page, and other refactoring.

Closes #50509

See merge request gitlab-org/gitlab-ce!21632

Avoid close icon leaving the modal header

See merge request gitlab-org/gitlab-ce!21904

Align collapsed sidebar avatar container

See merge request gitlab-org/gitlab-ce!22044

Use minimum recommended PostgreSQL version to run our tests

See merge request gitlab-org/gitlab-ce!22060

Cleanup code, and refactor tests that still use Rugged. After this, there should
be no Rugged code that access the instance's repositories on non-test
environments. There is still some rugged code for other tasks like the
repository import task, but since it doesn't access any repository storage path
it can stay.

Danger checks for the frontend

See merge request gitlab-org/gitlab-ce!21859

Docs quick actions - CE

See merge request gitlab-org/gitlab-ce!22058

Port UpgradeCommand to CE

See merge request gitlab-org/gitlab-ce!21949

CE Resolve "Refactor code quality similar to JUnit tests"

See merge request gitlab-org/gitlab-ce!21932

Resolve ""update_column_in_batches can not be run inside a transaction" during upgrade to 11.3"

Closes #51782

See merge request gitlab-org/gitlab-ce!22055

Hides Close MR button on merged MR

Closes #50161

See merge request gitlab-org/gitlab-ce!21840

[QA] Improve admin hashed-storage settings

See merge request gitlab-org/gitlab-ce!22045

Port of EE translations

See merge request gitlab-org/gitlab-ce!22052

Show the commit-sha for pre-release versions

Closes #52050

See merge request gitlab-org/gitlab-ce!22026

[Backport] Suggest approvers based on code owners

See merge request gitlab-org/gitlab-ce!21918

New Crowdin translations

See merge request gitlab-org/gitlab-ee!7492

When a Merge request is merged, shows only the Report abuse menu item
in the dropdown menu instead of showing the close_reopen_report toggle
with an unusable Close button.
The Report abuse is still hidden when the author of the Merge request
is the current_user.

Hides the Reopen button on a closed and locked issue when the
issue.author is not the current_user

The pre-release tags are set at the beginning of a release, so it
would be impossible to figure out which version was running if we're
running nightlies.

In that case it's better to still link to the SHA. These versions
don't get deployed to .com.

Resolve "Add "Link" shortcut/icon in markdown editor to make it easier to add references"

Closes #44627

See merge request gitlab-org/gitlab-ce!18579

Make single diff patch limit configurable

Closes #48027

See merge request gitlab-org/gitlab-ce!21886

Update Workhorse to 7.0.0 for Gitaly's new auth scheme

Closes gitaly#1319

See merge request gitlab-org/gitlab-ce!22037

QA: Optimize groups filter

See merge request gitlab-org/gitlab-ce!21994