add support for /projects/:id/labels
Merge pull request #46 from davidkuridza/feature/add-support-for-project-labels

Add support for /projects/:id/labels
fix wrong comment endpoint for merge requests
Merge pull request #47 from davidkuridza/bug/fix-wrong-MR-comments-endpoint

fix wrong comments endpoint for merge requests
Merge branch 'master' of github.com:m4tthumphrey/php-gitlab-api

Conflicts:
	lib/Gitlab/Api/MergeRequests.php