make status bar header weather more suit

Change-Id: I9abdfd63687fd7cf2aef84d89d459d479aa83e63

Conflicts:
	packages/SystemUI/res/layout/status_bar_expanded_header.xml
Make battery_level text more suit

Change-Id: I8eec61c6ba8cdb6fd07f92e470700f8b29c5ca4d
add more style to keyguard

Change-Id: Ic2ef719e47a07fad8331f88da8c125a4ea802d87
thin font for keyguard clock

Change-Id: I900c24bd9115f9d049d76afebfd215a833a9cb3d