------------------ - Fix bug in zipkin_span decorator
0.4.2
------------------ - Be defensive about transport_handler when logging spans.
0.4.1
------------------ - Add ability to override span_id when creating new ZipkinAttrs.
0.4.0
------------------ - Added `start` and `stop` functions as friendlier versions of the __enter__ and __exit__ functions.
0.3.1
------------------ - Adds new param to thrift.create_endpoint allowing creation of thrift Endpoint objects on a proxy machine representing another host.
0.2.1
------------------ - Officially "release" v0.2.0. Accidentally pushed a v0.2.0 without the proper version bump, so v0.2.1 is the new real version. Please use this instead of v0.2.0.