RC: AutoHide for SystemBar (2/2)

Allow SystemBar to AutoHide

Change-Id: I96648fcdf8f18a704379fdbfb100355cca4d745d
Signed-off-by: Zaphod <mwilson@acesappraisal.com>

Conflicts:
	res/values/strings.xml

Conflicts:
	res/values/strings.xml