AVRO-570. Python: Add connector for tethered mapreduce. Contributed by Jeremy Lewi and Steven Willis.

git-svn-id: https://svn.apache.org/repos/asf/avro/trunk@1629897 13f79535-47bb-0310-9956-ffa450edef68
AVRO-570. Python: Add connector for tethered mapreduce. Contributed by Jeremy Lewi and Steven Willis.

git-svn-id: https://svn.apache.org/repos/asf/avro/trunk@1629898 13f79535-47bb-0310-9956-ffa450edef68