Express & Socket.io logger

This feature allows you to dynamically enable/disable express http & socket.io event logging. Using /admin/logger, you can either log to process.stdout or to the specified file. With both HTTP & Socket.io logging checked, you can do some nice 'debugging' while watching the http req's and socket.io events trigger in succession. It's "lightweight" in the sense that it doesn't hook/inject the express middleware unless logging is specified.

HopeYouLikes.

-- adarqui