Wi-Fi AP priorities: Add RTL support & cleanup

Sync with cm-11.0 changes:
* RTL support
* Cleanup redundant layouts
* Correct copyright

Change-Id: Idb5785deaf49c0b3c716bb5b665e7508d34eb44d

Conflicts:

	res/layout/color_picker_item.xml
	src/com/android/settings/wifi/WifiPriority.java