[WIP]Adds Device Settings Menu to Omni

Screenshots:

http://abload.de/image.php?img=devicesettings1hesjq.jpg
http://abload.de/image.php?img=devicesettings2d1sng.jpg

Since we are adding more devices with their own parts apks. IE the SGSs,
Epic 4g, Note or M7UL  I thought this would be more convenient than modifing
every parts apps to show up in the launcher. No modification to most devices
should be necessary.

Patch set 4: Add option to the device settings to be hidden on devices by default
             Just need to add overlay for packages/apps/Settings/res/values/bools.xml
             for devices that need the option enabled.

             ie: <bool name="has_advanced_settings">true</bool>

Patch set 5,6: fix build (accidentally added <header>)

Change-Id: Iefbcb0b626ee8df62115d1baa4f0ffadbf9dba36
Merge branch 'test' of https://github.com/Omni-i9300-builds/android_packages_apps_Settings into test