Power Menu: Update the Expanded Desktop drawable

Also add a proper "off" state.

Patch Set 2-4: Add to symbols.xml
Patch Set 5: Remove the useless extra sw600dp-xhdpi drawable

Change-Id: I111982a4985bba19353dd4f3872e5b21e73dd5f9
Merge "Power Menu: Update the Expanded Desktop drawable" into cm-10.1
Revert "am: Allow more hidden apps on devices with lots of RAM"

 * This isn't actually needed on 4.2+

This reverts commit 03a420191d8063a8def901b1955b7c477185d62d.

Change-Id: I1c4ef3c9c00882bf2c36ad042c368bacc0f9220f
Merge pull request #2 from Serhij/cm-10.1

Cm 10.1