Cleaning up import and unused HubActor
Moving to codahale metrics 3.0.0-BETA2 and refactoring json stats
Merge branch 'scala' of code.corp.twilio.com:kelvin/shadow into scala
removing redundant temp variables when generating json
Adding unsubscribe from eventstream when connection is closed
Fixing tests
Merge remote-tracking branch 'twilio-kelvin/scala' into scala