Adding fling-to-delete.

- Also fixing issue where the drop target icon changes color slower than the text.

Change-Id: I0bfa59da5d202016342f1c3de419ebcafd81ff6f

src/com/android/launcher2/AppsCustomizePagedView.java

@@ -760,6 +760,10 @@ public class AppsCustomizePagedView extends PagedViewWithDraggableItems implemen
         mDraggingWidget = false;
     }
 
+    public boolean supportsFlingToDelete() {
+        return false;
+    }
+
     @Override
     protected void onDetachedFromWindow() {
         super.onDetachedFromWindow();