Merge branch 'backup-settings-warning' into 'master'

Backup settings warning

Fixes #1457

See merge request !992
Explain project services.
Merge branch 'project-services-explained' into 'master'

Project services explained

See merge request !993
Merge branch 'exim-problems' into 'master'

Exim problems

After merge report back to https://github.com/gitlabhq/gitlabhq/issues/4866

See merge request !990
Add a tip on how to test regular expressions
Merge branch 'master' of gitlab.com:gitlab-org/gitlab-ce
Most starred projects page for Explore area

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Moved some behaviour to one place

Signed-off-by: Jeroen van Baarsen <jeroenvanbaarsen@gmail.com>
Tests for trending/starred pages

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Merge branch 'most-starred' into 'master'

Most starred projects page

Fixes #1461

See merge request !996
Merge pull request #7319 from jvanbaarsen/small-eventcache-refactoring

Moved some behaviour to one place
Fix missing links and incorrect display of issue numbers for notes, comments, and merge requests
Add missing semicolon in application.scss
Merge branch 'add-merge-moments-to-process' into 'master'

Add merge moments to process

Fixes #1450

See merge request !986
Merge branch 'test_regex_with_rubular' into 'master'

Add a tip on how to test regular expressions

See merge request !994
Merge branch 'fix_typo_application_scss' into 'master'

Add missing semicolon in application.scss

Was toying to import some custom css and found out about this :)

See merge request !157
Merge branch 'master' of gitlab.com:gitlab-org/gitlab-ce
Do not execute hooks on empty projects, fixes #6108
7.2 started
Improve markup gems