Frameworks: Recent Apps Clear All Button Location [2/2]

Allows the user to select if the want the Recent Apps Clear All Button on the left or right side of the screen.

PatchSet:
- fix gravity

PatchSet:
- fix gravity again
- fix wrong spacing
- small cleanup

Change-Id: I13cb213495d9b0420d10eddaae64b0dbce106f24
Merge branch 'temp' into jb4.3