Add docs for the cleanup step of a background column type change

See merge request gitlab-org/gitlab-ce!20020

Rails5 fix  expected: 0 times with any arguments received: 1 time with…

Closes #48141

See merge request gitlab-org/gitlab-ce!20018

Use Go 1.10 for source installations

Closes gitaly#1231

See merge request gitlab-org/gitlab-ce!19989

Use gitaly for backup rake task

See merge request gitlab-org/gitlab-ce!19742

Rails5 fix expected: 1 time with arguments: (97, anything, {"squash"=>false}) received: 0 times

Closes #48104

See merge request gitlab-org/gitlab-ce!20004

Rails5 fix Projects::PagesController spec

See merge request gitlab-org/gitlab-ce!20007

More gitaly disk access blocks

See merge request gitlab-org/gitlab-ce!19892

Implement filtering by filename on code search

Closes #43627

See merge request gitlab-org/gitlab-ce!19509

Move git version detection to gitaly for usage ping data

Closes #48105 and charts/gitlab#530

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

Rails5 fix  expected: 0 times with any arguments received: 1 time with arguments: DashboardController

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

A background column type change needs a cleanup step, like any background
migration. We should call that out explicitly in the documentation.

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