Display options: allow configuration of wake on plug

Use separate preference screen

Conflicts:
	res/values/ras_strings.xml
	res/xml/system_settings.xml
has_led_flash boolean
LED customization

original commit CM

Conflicts:
	res/values/ras_arrays.xml
	res/values/ras_strings.xml
	res/xml/system_settings.xml
	src/com/android/settings/DisplaySettings.java
Navigation bar custom height

Conflicts:
	res/values/ras_arrays.xml
	res/values/ras_strings.xml
	res/xml/system_settings.xml
properly refresh led settings