(maybe someone can solve this...) [2/2] OmniGears: Add a custom notification panel header

PS2:
rebased

Change-Id: I45b6542458e544206f3b928a042fd05605833364

Conflicts:
	res/values/custom_strings.xml
	res/xml/bars_and_menus_settings.xml
	src/org/omnirom/omnigears/BarsAndMenusSettings.java