Implements getting the min sensor reading update rate, min and max reading values, and reading resolution.
Implements getting the min sensor reading update rate, min and max reading values, and reading resolution.

Approved by Ricardo Mendoza, PS Jenkins bot.
* Implements getting the min sensor reading update rate, min and max
  reading values, and reading resolution.
* Refactor accelerometer support so that it supports calling more than
  one observer listener per Sensor instance.

* Support tracking sessions in a different namespace than the app manager. 
* Move default app manager to detail namespace.
* Fix various tests due to API changes.
Release version 0.17:

[ Jim Hodapp ]
* Implements getting the min sensor reading update rate, min and max
  reading values, and reading resolution.
* Refactor accelerometer support so that it supports calling more than
  one observer listener per Sensor instance.

[ Ricardo Mendoza ]
* Support tracking sessions in a different namespace than the app manager. 
* Move default app manager to detail namespace.
* Fix various tests due to API changes.

Approved by PS Jenkins bot, Jim Hodapp.