SAMZA-452: use full package name for job.factory.class in configuration doc.
SAMZA-319: Address release feedback
SAMZA-454: Add line breaks to config table, to make it easier to read.
SAMZA-453: Allow spaces in task.inputs config property.
SAMZA-447: Remove Apache Maven repository from build.gradle
SAMZA-464: remove javadocs in docs directory; add ignore javadocs in .gitignore
SAMZA-319: Using the correct short version of the LICENSE
SAMZA-466; removed unused import in MetricsHelper
SAMZA-430; update BeanProperty package space
SAMZA-470; test jdk8 in bin/check-all.sh
SAMZA-472; update release docs to fix gpg command
SAMZA-461; fix race condition when starting job with an empty stream
SAMZA-473; remove samza-serializers package
SAMZA-310: Publish container logs to a SystemStream
SAMZA-486; document checkpoint migration tool
SAMZA-487: updated to 0.8 version and corresponding archive versions
SAMZA-493; link to 0.8.0 release on download page
SAMZA-494; update version to 0.9.0-SNAPSHOT
SAMZA-491; support non-default queues in YARN
SAMZA-495; update hello-samza to point to 0.9.0