Add network usage stats to status bar. [2/2]

PS2: Rebased

Conflicts:

	res/values/arrays.xml
	res/values/strings.xml
	res/xml/status_bar.xml
	src/com/android/settings/chameleonos/StatusBar.java

Change-Id: I245b911785a6f9834b9e1a1ce64de624d14fbf0e