Add button for removing source branch for merged MR's.
Add support for relative submodules
fixed regex to match url pointing to a user repo
simplify link url
Merge branch 'master' into request/relative_submodules

Conflicts:
	CHANGELOG
Refer to bundler's ability of parallel installation
Make sure important directories exist in git

Ensures the following directories exist after a git clone:
- public/uploads
- tmp/pids
- tmp/sockets
Remove Install doc notes about creating certain folders
Merge branch 'master' into request/relative_submodules

Conflicts:
	CHANGELOG
Disable compression to prevent BREACH attack

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Only send email when project access level changes.
Fix user_project observer test.
Reduce the number of times people send emails or file issues out of the blue.
Add to update guides satellites group permission.
Add one line upgrade command.
 Merge branch 'update_update_guides' into 'master'

Add to update guides satellites group permission.
 Merge branch 'add-one-line-upgrader-command' into 'master'

Add One Line Upgrader Command

This is related to my previous MR from one month ago. I've done a fresh checkout of master and reapplied the path so that the tree is clean again, as requested.
 Merge branch 'no_email_on_notification_level_change' into 'master'

Don't send emails on notification level change
Merge pull request #6658 from tsigo/rs-important-dirs

Make sure important directories exist in git
Merge pull request #5950 from axilleas/bundler_parallel

Refer to bundler's ability of parallel installation