Update wallpapers

Change-Id: I7b35d523dd64c8503d8cde32c645960538d3c238
Revert "Update wallpapers"

This reverts commit 2baac8d45492d32f909c6dcd29e133bda30f792a.
Restore 720dp wallpapers

Change-Id: Ibafa9195ac3ac2e4666a35a6fe8f059d5798ee87
Simplified default workspace

Change-Id: I2fc577cc1a74e35ad115d65079a43632df248070
Max widget grid size and hotseat cell width

Change-Id: I40e267c8d3cf9f83f91f495b65916fa3d7068435
Merge branch 'sgt7' into CM10.1

Conflicts:
	res/xml-sw720dp/default_workspace.xml