Use single quotes instead of double quotes

Yes, OCD
Introduce ConnectionManager + add tests for Connection Failure
Add response logging to Logger for REST client library
Reflect changes in API for Messages
Reflect changes in API for PresenceMessage from #clientData to #data
Improve debugging inspection of PagedResource
Add #heartbeat method to the Realtime Connection object
Remove EventMachine timer as it prevents the reactor from stopping from within another timer
Standardise logging, allow custom Logger and improve formatting for default Logger
Bug fix: MessagePack was not being used for outgoing REST requests
Small documentation improvements
Always wait for next tick before processing queues
Additional test coverage focussed on concurrency