v0.3.1

0.3.1 Release

• Fix cluster_application_kill API

v0.3.0

0.3.0 Release
- Add support for YARN endpoints protected by Kerberos/SPNEGO
- Moved to use requests package for REST API invocation
- Remove http_con property, as connections are now managed by requests package

v0.2.5: Merge pull request #14 from toidi/update-python-versions

add python versions to travis build definition