Merge branch 'star' of https://github.com/cirosantilli/gitlabhq into cirosantilli-star

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Conflicts:
	CHANGELOG
Merge branch 'cirosantilli-star'
Fix test

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Mention Explore page in CHANGELOG

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Note exim problems.
Move star button to sidebar. Add counter to forks too

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Fix star tests

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

Improve star ui

* move star button to sidebar (where other buttons are)
* it fixes overflow issue for screens smaller then 1200px
* it fixes wrong vertical align for star button at old position
* add forks count too - so it looks similar with stars

Fixes #1460

See merge request !991
Add full commit message to commit api as field message.
Include "Merge-request reopened" emails in the proper email thread
Merge branch 'word-requirement-a-bit-more-realistic' into 'master'

Word requirement a bit more realistic

See commit message

See merge request !155
Add warning about backing up the config.
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>