Replace clipboard icon in Service Desk settings

Closes #6988

See merge request gitlab-org/gitlab-ee!6643

Updates documentation to state that rack attack will be disabled by default…

See merge request gitlab-org/gitlab-ee!6653

Replace snake case css classes

See merge request gitlab-org/gitlab-ee!6651

Updates documentation to state that rack attack will be disabled by default starting at version 11.2

Improve the 'review' job and make it manual

See merge request gitlab-org/gitlab-ee!6535

Replace all snake case in scss variables

See merge request gitlab-org/gitlab-ee!6649

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

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

CE upstream - 2018-07-25 00:21 UTC

See merge request gitlab-org/gitlab-ee!6650

Add example output for file integrity check rake task

Closes #49244

See merge request gitlab-org/gitlab-ce!20825

Fix: redirect non-SSL request for gitlab registry to valid URL

See merge request gitlab-org/gitlab-ce!20824

HTTP host and URI should not be separated by a colon. Generated URLs was looking like http://registry.examples.com:/foo. That is throwing up let's encrypt cert requests for gitlab registry.

CE upstream - 2018-07-24 21:21 UTC

See merge request gitlab-org/gitlab-ee!6648

Fix slow Markdown rendering

Closes #49409

See merge request gitlab-org/gitlab-ce!20820

CE upstream - 2018-07-24 15:22 UTC

Closes #6028

See merge request gitlab-org/gitlab-ee!6644

[ci skip]

# Conflicts:
#   doc/user/profile/personal_access_tokens.md

The sanitize transformers were being duplicated each time the Markdown
renderer was called, leading to expontential growth in rendering times.

The problem was that although HTML::Pipeline::SanitizationFilter.WHITELIST
is a frozen hash, the `:transformers` array can be modified. We need
to do deep copy of this to avoid adding duplicates.

Closes #49409

Resolve "Admin area > Colored panels have wrong header color"

Closes #6209

See merge request gitlab-org/gitlab-ee!6646

Add best practice points regarding background migrations on huge tables

See merge request gitlab-org/gitlab-ce!20815

Fix typo in high availability docs

See merge request gitlab-org/gitlab-ce!20805

Remove extra parenthesis in PAT docs

See merge request gitlab-org/gitlab-ce!20807

Remove extra parenthesis in PAT docs

See merge request gitlab-org/gitlab-ee!6639

Backport various EE changes to Gitlab::Database

See merge request gitlab-org/gitlab-ce!20809

db/migrate/20180722103201_add_private_profile_to_users.rb