added heartbeat packet.
Merge branch 'master' into finishStateTransitions
Merging work done over winter break with fix for GPS.
fixed open files bug for packet daemon.
fixed indexing error in getPos and getBroadCastLoc and fixed update location logic
Updated accept api to send gps origin information
to the headset. An application has been added for
the ccu testing code that sends querys for the
headset's gps and imu data and then displays it.