Merge pull request GitLabPHP#46 from davidkuridza/feature/add-support-for-project-labels

Add support for /projects/:id/labels

Author: m4tthumphrey

lib/Gitlab/Api/Projects.php

@@ -160,6 +160,11 @@ public function events($project_id)
         return $this->get('projects/'.urlencode($project_id).'/events');
     }
 
+    public function labels($project_id)
+    {
+        return $this->get('projects/'.urlencode($project_id).'/labels');
+    }
+
     public function search($query)
     {
         return $this->get('projects/search/'.urlencode($query));