RC: Navring rework.

PS1: Better interface for users.
     Get drawables from FW.

PS2: Added logic for tabletui and layouts (may need tweaking)

PS3: Cleaned up strings
     Added long and short discriptions to the pop up dialogs
     Since long press action have no icon I made a friend uri toast
     message to let user know a long press action was set.

PS4: simpify the dialogs a bit. still need to fix custom icons...

PS5: Fixed custom Icons did more dialog work.
     only 2 things left. tabletui/landscape layouts need tweaking
     need to move target selection and enable longpress inside the new
     ui. Getting close this is pretty functional.

PS6: Adjusted custom icons size.
     Moved Enable long press and amount inside the ui
     moved Navigation ring to its own header in main activity

PS7: Cleanup a bit.
     fixed crashing on changing target values
     Now using a spinner and switch for target number and longpress

pic https://dl.dropbox.com/u/31932935/Screenshot_2013-02-23-21-59-23.png

PS8: Comment clean up.

PS9: use one content resolver instead of like 12....
     Switched to enum and switch case for dialog functions

all we need now is layouts for tabletui to be cleaned up and an icon for the
main activity

Change-Id: I33342f5e8bd3b88a56fb3cbbac2390a4cef1269f

Conflicts:
	AndroidManifest.xml
	res/drawable-hdpi/ic_navbar_googlenow.png
	res/drawable-hdpi/ic_navbar_killtask.png
	res/drawable-hdpi/ic_navbar_power.png
	res/drawable-hdpi/ic_navbar_ring_vib_silent.png
	res/drawable-hdpi/ic_navbar_screenshot.png
	res/drawable-hdpi/ic_navbar_silent.png
	res/drawable-hdpi/ic_navbar_vib.png
	res/drawable-xhdpi/ic_navbar_googlenow.png
	res/drawable-xhdpi/ic_navbar_killtask.png
	res/drawable-xhdpi/ic_navbar_power.png
	res/drawable-xhdpi/ic_navbar_ring_vib_silent.png
	res/drawable-xhdpi/ic_navbar_screenshot.png
	res/drawable-xhdpi/ic_navbar_silent.png
	res/drawable-xhdpi/ic_navbar_vib.png
	res/layout-land/navigation_ring_targets.xml
	res/layout-land/navigation_ring_targets_tablet.xml
	res/layout-sw600dp-land/navigation_ring_targets.xml
	res/layout-sw600dp/navigation_ring_targets.xml
	res/layout/navigation_ring_targets.xml
	res/layout/navigation_ring_targets_tablet.xml
	res/values/strings.xml
	res/xml/preference_headers.xml
	src/com/aokp/romcontrol/fragments/NavRingTargets.java
	src/com/xylon/settings/fragments/NavigationBar.java