Version 0.14.9

Highlights:

• Use of docker images for heron containers in DC/OS scheduler
• Docker images published as tar balls for private registries
• Initial support for running Heron in Kubernetes
• Docker images published in dockerhub for centos7, ubuntu14.04

Release Notes:

• Add a readme file for pyheron (#1944)
• Update documentation regarding topology_bin in the SubmitterMain (#1939)
• Kubernetes Scheduler Support (#1928)
• UpdateTopologyManager using stale topology (#1937)
• Moved the docker builds and docker images to use open-jdk-8 (#1941)
• Add simple script to compile heron and package it in a docker image. (#1934)
• Remove heron core fetching for MarathonScheduler. (#1894)
• When the python pex file is copied over to the container, only (#1926)
• Python packaging (#1425)
• UpdateTopologyMaster using stale Topology from initial submission (#1924)
• Adding sleep to TestSpout to throttle down cpu usage (#1925)
• Fixing logging bug in UpdateTopologyManager (#1931)
• Fix heron-shell dependency (#1930)
• Decode serialized value in heron-tracker. (#1927)
• Asynchronously handle subprocess stdout/stderr in client. (#1923)
• Removed per client/server specific acquire/release and consolidated them in one place (#1914)
• Add back missing arguments. (#1921)
• Remove unused heron.instance.slave.fetch.pplan.interval.sec (#1920)
• Clean up exception handling in common tests (#1919)
• Remove unused heron.instance.state.check.interval.sec config (#1916)