2014-05-19 / 0.0.2.5 / First official release to pypi.
2014-06-30 / 0.0.3.0 / Added to_dict, to_json, and get_alarms methods to SensorHub object.
2014-07-08 / 0.1.0 / Interface of SensorHub and SensorCheck objects relatively stable.
2014-07-08 / 0.1.1 / bugfixes, realignments
2014-07-23 / 0.1.2 / CustomJsonEncoder now uses pyRFC3339 to convert datetime to string and back.
2014-07-24 / 0.1.2.1 / Documentation fix.
