Fix switching running/cached apps with memory bar

Fixes upstream issue #38735
http://code.google.com/p/android/issues/detail?id=38735

Ported from CM10
http://review.cyanogenmod.org/25775

This patch is already submitted to AOSP. No feedback from them yet.

Change-Id: I484e30d3fd4f5425e174911ae22bb2def170e6b8
add toggle to turn off bong sound when changing volumes

Conflicts:

	res/values/strings.xml
	src/com/android/settings/SoundSettings.java
fix conflicts
SoundSettings: Show DSPManager

Change-Id: I199150b82c6f5eb72f419dc8c70fb27ed24fbfda
catchin it up