Version 6.0.5.1

Notable changes since 6.0.5.0:
* Fix /misc partition erase on recovery start
* Set SELinux contexts for init and services
* Minor touch updates
* Better vold formatting logic
* Compatibility updates for adb and 3.10 kernels

Change-Id: Ie6035fb706b50be1b78ed09c237644fdd091cce8