Move git version detection to gitaly for usage ping data

Closes #48105 and charts/gitlab#530

See merge request gitlab-org/gitlab-ce!19993

Resolve "[Rails5] expected "2018-05-07 13:53:08 UTC" to be an instance of ActiveSupport::TimeWithZone"

Closes #47959

See merge request gitlab-org/gitlab-ce!20000

Point out the specific anchor inside the document

See merge request gitlab-org/gitlab-ce!19998

LFS changes are detected by Gitaly

Closes gitaly#935

See merge request gitlab-org/gitlab-ce!19995

Updated horizontal ellipsis icon for text-expander

See merge request gitlab-org/gitlab-ce!18793

Correct cURL syntax

See merge request gitlab-org/gitlab-ce!20014

Resolve "Branch name status color is not correct anymore"

Closes #48025

See merge request gitlab-org/gitlab-ce!19973

use eslint cli option instead of sed

See merge request gitlab-org/gitlab-ce!19939

Resolve "Remove “commented” from comment system notes"

Closes #46250

See merge request gitlab-org/gitlab-ce!19709

Update JupyterHub docs with additional details

See merge request gitlab-org/gitlab-ce!19981

Make Page::Main::Login#sign_in_using_credentials gracefully bail out when user is already logged-in

See merge request gitlab-org/gitlab-ce!19964

Fix cancel automatic merge button height

Closes #48052

See merge request gitlab-org/gitlab-ce!19977

Expose whether current user can push into a branch on branches API

See merge request gitlab-org/gitlab-ce!19958

Fix missing underline on focus states for anchor tags

Closes #47748

See merge request gitlab-org/gitlab-ce!19873

Fix flakey time-senstive group filter specs

See merge request gitlab-org/gitlab-ce!19880

Resolve "Frontend issues in integrations page"

See merge request gitlab-org/gitlab-ce!19970

Force push is handled by Gitaly now

Closes gitaly#348

See merge request gitlab-org/gitlab-ce!19992

Move forking to Gitaly

Closes gitaly#817 and gitaly#1236

See merge request gitlab-org/gitlab-ce!19990

Closes https://gitlab.com/gitlab-org/gitaly/issues/935

Closes gitlab-org/gitaly#348

Signed-off-by: Rémy Coutable <remy@rymai.me>

Counting commits is done by Gitaly

Closes gitaly#382

See merge request gitlab-org/gitlab-ce!19983

Resolve "Slack Tag push notifications are not send (only default branch option)"

Closes #45487

See merge request gitlab-org/gitlab-ce!19864

Eliminate N+1 queries in LFS file lock checks during a push

See merge request gitlab-org/gitlab-ce!19978

Closes https://gitlab.com/gitlab-org/gitaly/issues/817

Closes https://gitlab.com/gitlab-org/gitaly/issues/1236

Fix group pagination and add sort by id to groups and subgroups

Closes #47409

See merge request gitlab-org/gitlab-ce!19665

Extract EE-specific lines from discussion views

See merge request gitlab-org/gitlab-ce!19831

Remove label examples from headings

See merge request gitlab-org/gitlab-ce!19982

Move language detection to mandatory

Closes gitaly#732 and gitaly#360

See merge request gitlab-org/gitlab-ce!19985

Rebase and Squash in progress are Gitaly only

Closes gitaly#865 and gitaly#1018

See merge request gitlab-org/gitlab-ce!19987

Move info attributes to mandatory

Closes gitaly#1082

See merge request gitlab-org/gitlab-ce!19988

Move count commit to mandatory

Closes gitaly#330

See merge request gitlab-org/gitlab-ce!19984