android: Save volume for for app is resumed

Signed-off-by: Brandon McAnsh <brandonm@matricom.net>
android: Allow xbmc to be completely rebranded

* Also start making changes to allow our xbmc as system application

Signed-off-by: Brandon McAnsh <brandonm@matricom.net>
android: Block escaping from Splash

Signed-off-by: Brandon McAnsh <brandonm@matricom.net>
android: Allow access to PowerManager when system app

Signed-off-by: Brandon McAnsh <brandonm@matricom.net>
android: Handle home correctly if we are default

Signed-off-by: Brandon McAnsh <brandonm@matricom.net>