renamed qm labels, fixes #15

controllers/convert.php

@@ -311,7 +311,7 @@ final class ConvertController extends TracToGitlab\Controller
 
                 $state = $ticket[3][$trac] ?: '?';
 
-                $labels[] = "{$gitlab} {$state}";
+                $labels[] = "QM::{$gitlab}::{$state}";
             }
         }
 

lib/Controller.php

@@ -3,7 +3,7 @@ namespace TracToGitlab;
 
 /**
  * @property TracToGitlab\TracLookup $trac
- * @property Gitlab\Client $gitlab
+ * @property \Gitlab\Client $gitlab
  */
 abstract class Controller extends \PluginController
 {