RC: Notification panel Weather (2/2)

PS1: Restart SystemUI on Weather switch
PS2: Restart SystemUI on Weather style also
PS3: Put the Restart UI call in the right place this time
PS5: For real this time!!!
PS6: Fixed, Ship it
PS7: Restart SystemUI on Metric switch also

Change-Id: Id335f912f1a11ced04b5a1c11b04577db8af3514

Conflicts:
	AndroidManifest.xml
	res/xml/preference_headers.xml