improve regrex for match(sidekiq) robustness

e.g.: the sidekiq in my Debian box is v2.11.1
Fix cancel button link on edit files page
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
Campfire service added
Fix service tests in spinach
Fixed typo in Readme.md

Fixed 22th -> 22nd
Merge branch 'refactor/services' of /home/git/repositories/gitlab/gitlabhq
Generate the Rails secret token on first run.

Store the secret token in a .gitignored file called ".secret", which is
created by the initializer if it doesn't exist.
Merge pull request #4040 from smashwilson/generate-secret

Security: keep the Rails secret token out of version control.
Merge pull request #4035 from samurailink3/master

Fixed typo in Readme.md
Minor improve for code highlight in wiki