Settings: Overwork LED colorpicker dialog

thanks danny

cheers

Change-Id: Idb7e4f6dfa677746a72a1857e01cf363dca89341

Conflicts:
	res/layout/dialog_light_settings.xml
	src/com/android/settings/notificationlight/LightSettingsDialog.java

Conflicts:
	src/com/android/settings/notificationlight/ApplicationLightPreference.java
	src/com/android/settings/notificationlight/LightSettingsDialog.java