New app sidebar with support for folders, custom ordering and support
for left/right side [1/2]

Patch Set 4:
  Move sidebar to left side if configured for the right and the device
  is in landscape orientation with the navbar on the right.

Patch Set 5:
  Added option for displaying a visibla tab that will slide out the
  sidebar when the user touches it.

Patch Set 6:
  Check both package and class name when checking for duplicates in
  folders.

Change-Id: Ic77487651a1bcf441260f022053438ccd4d8997d