SystemUI: New adb over network icons

Preview: http://goo.gl/3Othlu

Change-Id: I88c17ac2b909c6b12cf2fd693d31688343de1209

Conflicts:
	core/res/res/drawable-xhdpi/ic_shortcut_twitter.png
	packages/SystemUI/res/drawable-xhdpi/ic_navbar_torch.png
	packages/SystemUI/res/drawable-xhdpi/ic_qs_network_adb_off.png
	packages/SystemUI/res/drawable-xhdpi/ic_qs_power.png
	packages/SystemUI/res/drawable-xhdpi/ic_sysbar_expanded_desktop.png
	packages/SystemUI/res/drawable-xhdpi/ic_sysbar_torch.png