dont unload image buffer (needs investigation)

Author: ianharrigan

haxe/ui/backend/ImageDisplayBase.hx

@@ -89,8 +89,8 @@ class ImageDisplayBase {
 
     public function dispose() {
         if (_buffer != null) {
-            _buffer.unload();
-            _buffer = null;
+            //_buffer.unload();
+            //_buffer = null;
         }
     }
 }