A little bit of codestyle improvments
System hooks execution moved to System hook service
Method moved to service
We don't need to check .profile now that gitolite is replaced by gitlab-shell
An Id must be sended to queue
Fix merge request migration for postgres
remove duplicate finder in features/steps/path
Update grit for ruby 2.0 support
Update grit to handle symlinks
Merge pull request #3057 from axilleas/master

Remove function 'check_issue_1059_shell_profile_error' from check.rake as it is not needed anymore
Merge pull request #3052 from Undev/system-hook-observer-improves

System hooks code & logic refactoring