Merge pull request #5 from jefferai/master

Add a Destroy method to the room manager
OnClose function extended to accept callbacks with extended connections.
Merge branch 'master' of https://github.com/trevex/golem
Room Manager now manages connection specific options to allow advanced behavior.
OnConnection callback added to router.
Refactored, fmt and readme updated.
Added contributors to README.
Updated dependency to gorilla websockets.
Add custom arguments bridged between the handshake and connection callbacks