Show progress indicator for loading previews.

PS2:
Remove preview.png

PS3:
Remove unused imports and clean things up a bit.

Change-Id: I27d4fdd1c2177e34c7fc799804890e344bd514dd
Enable home as up for a consistent UX.

Change-Id: Icfdf42503ea49a53e304327784a3a7ea0dbe94b0
Add a 3D flip animation when previews load.

Change-Id: I41abc4f23761b67cfb8bc07c99259ee8891e5f0f
Fix ArrayIndexOutOfBoundsException when deleting a theme.

Change-Id: Ia0415c3e013d07d2c8bf6dbb315a138ebc61c258
Merge pull request #2 from ChameleonOS/jellybean-mr1

jellybean-mr1