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

Change-Id: Ie36c574af2ac188ac7d8d8f5e5f9a7d96e328bfe

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

Change-Id: I39cf54e853ee5fcd3b98d6ebd6970ce21f2ea5b8

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

Change-Id: I7834737bdd06fd864a8327b38dfd5a81906c13eb

Conflicts:
	res/values/cr_strings.xml