Update the legacy sensor code to use SensorEventListener instead of the (#451)
Update the legacy sensor code to use SensorEventListener instead of the (#451)

* Update the legacy sensor code to use SensorEventListener instead of the
deprecated SensorListener. This also allows for some sanitization of the
code since we no longer have to deal with various coordinate systems
being backwards.

* Update the docs some more.
sky-map-team/stardroid,sky-map-team/stardroid,sky-map-team/stardroid,sky-map-team/stardroid,sky-map-team/stardroid