2-July-2014 

SensorEvent and SensorManager updates.
Added LocalEnvironmentMissingException and Barometer. Minor changes to
PACSim and Smartphone.
Merge pull request #9 from RARyan/RobMasterBranch

Rob master branch
Merge pull request #10 from RARyan/JoshBranch

Sensor class now takes sensorType, errorRange, and errorBias.
Changed Sensor to GenericSensor and made Sensor a subclass of Generic
Sensor. Sensor represents the Android Sensor and GenericSensor
represents the sensors external to the Smartphone.
Merge pull request #11 from RARyan/RobMasterBranch

2-July-2014:1800
Created sensors.android for all Android sensors
Merge branch 'RobMasterBranch'