v0.2.0

3504ef1 Check for ipv6 hosts when creating the url
f4a7f59 Add the option to receive data in any encoding
f30a4c5 Better way to shutdown the socket under python3
980545f Allow failures for non-py2.7 tests
868e854 Add a "create" method for the client
a5f22d4 Use py.test to better find hung tests
ab6f262 Update etcd version, add py36