Enable custom actions for double tap home (2/2)

Change-Id: Iaa837b52b993f168d0eb3b8ba806304c7f3fe588
Button & keyboard backlight brightness adjustment (1/2)

PS2: move from display to button settings
PS3: fix tab

Signed-off-by: Michael Bestas <mikeioannina@gmail.com>

Change-Id: I35a6d149affc1da08707b7c40fb02761321cba41
Merge "Enable custom actions for double tap home (2/2)" into cm-10.2
Fix removal of backlight settings

Signed-off-by: Michael Bestas <mikeioannina@gmail.com>

Change-Id: I118e667b306a5a1e50d593f3f18828b7a921a511
Merge "Fix removal of backlight settings" into cm-10.2