improve regrex for match(sidekiq) robustness

e.g.: the sidekiq in my Debian box is v2.11.1
Add settings for user permission defaults

“Can create groups” and “Can create teams” had hardcoded defaults to
`true`. Sometimes it is desirable to prohibit these for newly created
users by default.
Style target notes for easy visual identification
Fix not displaying a slash after namespace.

fix #3969
Give examples that have been reported frequently.
GitLab must run before the check is done.
Fix link 404.
Use default cursor on network graph.

The cross 'move' cursor doesen't work if you can't it around.
refs #3741
Fix cancel button link on edit files page
[FEATURE] Basic user_teams api

 * Closing #3066
 * Closing #3609
Merge pull request #4018 from dolphin333/fix_cancel_button_link_on_edit_files_page

Fix cancel button link on edit files page
handle broken diffs gracefully
include namespace in project path for system hook
Fix huge MR exceptions. Fixed link to diff for it
Use separate property for project path and project path with namespace inside system hook
Replace all occurs of {{created_at}} at project wall
Make service code more abstract
Add more fields to project service model
Add tinder for future campfire integration
Mention methods that should be implemented inside service