milaq: Add Gyroscope sensor userspace driver
(patch set 13 update by John Newby)

Based on the hardware/invensense/libsensors/ example

Requires:
http://review.cyanogenmod.org/#/c/29733/

1. Introduce MPL3050 userspace driver
2. Updates to sensor setup by John Newby

Change-Id: I4ae4017727b88dff4c8206c7702f4a4c0861f75d

Conflicts:

	libsensors/MPLSensor.cpp
restore pre-cm10.1 camera parameters
they seem to produce a better picture
overlay: remove bootloader reboot option
not available on tenderloin, so lets hide it