Settings: recents clear all options

Thanks to Omni team

Conflicts:
	res/values/mahdi_arrays.xml
	res/values/mahdi_strings.xml
	res/xml/customization_settings.xml

Conflicts:
	res/values/ras_arrays.xml
	res/values/ras_strings.xml
	res/xml/sound_settings.xml
	res/xml/system_settings.xml