gitignore updates.
Created by: VonC
Most yml files are ignored in gitlab/config/, except resque.yml => add it to the list of ignored files.
If one is using gitlab in a https://xxx/gitlab (RAILS_RELATIVE_URL_ROOT) one can add a symlink 'gitlab' pointing to 'public' => ignore '/gitlab' (i.e. a file at the root directory of the git repo, pointing to 'public', should the user choose to create said symlink)