Updated-
    main story board to include noise input.
Started-
    changing sensor class from UIViewController subclass to NSObject
    subclass.
Finished-
    adding aduio entitlements to app.
Added noise level monitoring object and still in middle of updating the
IO class to a NSObject subclass from a UIViewController subclass. Still
need to:
    * Finish writing audio callbacks
    * Finish writing audio processing function
    * Test alert views work with entire app
    * Test IO is working
Merge pull request #98 from mbaptist23/sensor_integration

Sensor integration