increased the refresh time (for inbound topics) to an hour
adding support for converting Dates to Long
fixed compile issue
enhanced JSON <-> Avro support
added support for Avro-Json output
added Kafka Sandbox
fixed issue with Zookeeper connections with existing Kafka sandbox connections
added Scala doc
Merge branch 'develop' into feature/cassandra

* develop:
  added Scala doc
  fixed issue with Zookeeper connections with existing Kafka sandbox connections
  added Kafka Sandbox
  added support for Avro-Json output
  enhanced JSON <-> Avro support
  fixed compile issue
  adding support for converting Dates to Long
  increased the refresh time (for inbound topics) to an hour