Juggler: Minor fixes

Removal of more remnant Vector artifacts.

src/starling/animation/Juggler.hx

@@ -404,7 +404,7 @@ class Juggler implements IAnimatable
             while (i < numObjects)
                 __objects[currentIndex++] = __objects[i++];
 
-            __objects.length = currentIndex;
+            __objects.resize(currentIndex);
         }
     }