Frameworks: Slim Shortcuts

PS2: Screenshot, Reboot, Last-App
PS3: Forgot earlier derp fixed elsewhere.
PS4: Clean-up
PS5: No change.  Create Dependant.
PS6: Fix blank activities sometimes.

Change-Id: I9c5e7dbdeaa727fca9a7317c3546ff9aa67ef4bf
Merge "Frameworks: Slim Shortcuts" into kk4.4