Fixing some issues/regressions related to scaled icons.

- Fixes issue with folder icons being clipped in landscape in sw720dp (Bug: 6118397)
- Fixes issue with divider being in wrong orientation in sw720dp
- Fixes issue with scaled icons not being drawn with filtering
- Fixes issue with side pages showing under the hotseat when in landscape in phone UI
- Animates the drag view on pick up and drop

Change-Id: Iad26427ec63fcbc9bdb3b29a4645689ba445d5c8

src/com/android/launcher2/DragView.java

@@ -162,7 +162,7 @@ public class DragView extends View {
             // for debugging
             Paint p = new Paint();
             p.setStyle(Paint.Style.FILL);
-            p.setColor(0xaaffffff);
+            p.setColor(0x66ffffff);
             canvas.drawRect(0, 0, getWidth(), getHeight(), p);
         }