0.4.2

The reaper thread for a manager will go to sleep completely when there are no connection to manage. See: https://github.com/snoyberg/http-client/issues/70

0.4.1

• Provide the responseOpenHistory/withResponseHistory API. See: https://github.com/snoyberg/http-client/pull/79

0.4.0

• Hide the Part constructor, and allow for additional headers. See: https://github.com/snoyberg/http-client/issues/76