Missing callback on go

lib/Controller.js

@@ -220,7 +220,7 @@ Controller.prototype.go = function(goal, callback) {
         goal.yaw = goal.yaw.toRad();
     }
 
-    return this._go(goal);
+    return this._go(goal, callback);
 }
 
 Controller.prototype._go = function(goal, callback) {