DreamSettings : Insert help url

Place correct url for dream help

Change-Id: I637ab3c5dfac24dde3dd30b56ea6529f5feef1c4
Settings : Insert missing help urls

Change-Id: Id43cc744cb4f36cbfa68b0b3fae0b8d4f7927839
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