Lockscreen: Add back lockscreen wallpaper (1/2)

Much simper implementation than in previous releases.

Change-Id: Id67bc9fc6613c9d978354556191456e1141344b9
Signed-off-by: Dirk Rettschlag <dirk.rettschlag@gmail.com>
Quick Settings: Swipe to switch

Adds the ability to switch to/from Quick Settings, using a sideways
swipe gesture.
Video demonstration: http://www.youtube.com/watch?v=jZaDVBIFAuA
(Video for the initial Patch Set only)

PatchSet2 : Fixed a line
PatchSet3 : Removed unnecessary line of coding
Path-set 4: Fixed build errors

Change-Id: Ice46cb0806c965cc9f9fa9f3355b317d42e83896
Port "Option to control cursor in text fields using volume keys (1/2)" - AOKP

This feature is moved to framework so it also works with third party keyboards.

Change-Id: Iab8b2956489eab76229909322aa3c2233f73c32d

Conflicts:
	core/java/android/provider/Settings.java