Revert "Brig back audio features."

This reverts commit f00a972ed4739d19d7cc931e8c995fe09b003abb.
Improve tethering notification icons

Replaces the stock icons with the ones I submitted as part of
http://review.cyanogenmod.com/#/c/15930/ in CM9.

Change-Id: Iecfae9ad579c6c9ae06da0a08b61e9359a8a37b0
Remove GB alert drawable from reboot menu

Change-Id: I77cd3fabaed76c6cdd1ba051d628254c2f79974c
Statusbar settings

Conflicts:
	packages/SystemUI/res/values/dimens.xml
	packages/SystemUI/res/values/strings.xml
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
	packages/SystemUI/src/com/android/systemui/statusbar/policy/BatteryController.java

Conflicts:
	core/java/android/provider/Settings.java
	packages/SystemUI/res/drawable-hdpi/ic_notification_overlay.9.png
	packages/SystemUI/res/drawable-mdpi/ic_notification_overlay.9.png
	packages/SystemUI/res/drawable-xhdpi/ic_notification_overlay.9.png
	packages/SystemUI/res/layout/status_bar.xml
	packages/SystemUI/res/layout/system_bar_notification_area.xml
	packages/SystemUI/res/layout/system_bar_notification_panel_title.xml
	packages/SystemUI/res/values/dimens.xml
	packages/SystemUI/res/values/strings.xml
	packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
	packages/SystemUI/src/com/android/systemui/statusbar/policy/BatteryController.java
	packages/SystemUI/src/com/android/systemui/statusbar/policy/Clock.java
	packages/SystemUI/src/com/android/systemui/statusbar/policy/Prefs.java
	packages/SystemUI/src/com/android/systemui/statusbar/tablet/TabletStatusBar.java