Couple of edits
Add global reboot option

Add global reboot option when long press power key and confirmation dialog
when user chooses to reboot device.
Treat default value that wasn't found as empty value.

Fixes http://code.google.com/p/android/issues/detail?id=33220

Change-Id: If22e8b245f688d922c168aa54c8acf743c0644d7
Add clear all recents action to recents panel

Change-Id: I2243ebc83abc483e78b112900a653d7e61edc5ba