Add network usage stats to status bar (2/2)

Change-Id: I667f76cb486d67906025e1fee61a46ff4ebc1fb2

Conflicts:
	res/values/cr_arrays.xml
	res/values/cr_strings.xml
Network stats custom colors (2/2)

Change-Id: I55ff6f4fcf23fcfc795a1ce784c580ff41ed317e

Conflicts:
	res/values/cr_strings.xml
Network stats: Hide if there's no traffic (2/2)

Change-Id: Idc37765c73b7a7892b4d27259309e0038e4fcae8

Conflicts:
	res/values/cr_strings.xml