Framework: longpress to kill app for hardware key

original commit - https://github.com/CyanogenMod/android_frameworks_base/commit/139a04bda82eaa93041d3cc653965679de9978bb

P2: Changed runnable to Mike Wilson's version in AwesomeAction
https://github.com/AOKP/frameworks_base/blob/jb-mr1/packages/SystemUI/src/com/android/systemui/aokp/AwesomeAction.java
P3: Removed unnecessary imports

Change-Id: Iaa2de02cfa1b94faabbb1ca86a01f185a55c5e93