the Kafka/Zookeeper connection properties have been combined
moved documentation for built-in modules so that they appear before third party modules
added basic information about the Trifecta UI
fixed typo
added configuration details for Trifecta UI
Merge branch 'feature/web_ui' into scala_2.11

* feature/web_ui:
  added configuration details for Trifecta UI
  fixed typo
  added basic information about the Trifecta UI
  moved documentation for built-in modules so that they appear before third party modules
  the Kafka/Zookeeper connection properties have been combined