Fix illegal invocation

The second argument supplied here, should be a callback that is invoked
after the config was saved. Providing console.log here results in an
error.

Author: oliversalzburg

config/config.js

@@ -34,6 +34,6 @@ app.controller('GitLabCtrl', ['$scope', function ($scope){
     };
 
     $scope.save = function(){
-        this.providerConfig(this.config, console.log);
+        this.providerConfig(this.config);
     };
 }]);