filtering on Sensor objects is not functioning

[jgarman]

In [16]: c.select(Sensor).where("ip:192.168.1.1")[::]
HTTP GET /api/v1/sensor?ip=192.168.1.1 took 0.186s (response 500)
---------------------------------------------------------------------------
ServerError                               Traceback (most recent call last)

^ this should be ipaddr=192.168.1.1 or q=ip:192.168.1.1

[zacharyestep]

Fixed by the recent changes.
#87
https://github.com/carbonblack/cbapi-python/pull/87