Added some notes to the README
Removed 'tick'.  There's a better way to do this...
Major refactor:

* renamed files to be hopefully a little less confusing
* split moo.coffee into individual files for each class:
	* db.coffee - the database of objects and player
	* object.coffee - a room.js object
	* player.coffee - a room.js player
	* verb.coffee - a room.js verb
* renamed classes to no longer reference "moo"
* split up server.coffee into more manageable pieces
	* web_server.coffee - handles web connections
	* socket_server.coffee - handles websocket connections
* added more notes/comments to the code