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/FastBitmapDrawable.java

@@ -29,7 +29,7 @@ class FastBitmapDrawable extends Drawable {
     private int mAlpha;
     private int mWidth;
     private int mHeight;
-    private final Paint mPaint = new Paint();
+    private final Paint mPaint = new Paint(Paint.FILTER_BITMAP_FLAG);
 
     FastBitmapDrawable(Bitmap b) {
 	mAlpha = 255;