Use variable to store active sessions

Keep session data in process for as long as the TCP connectoin is
open. Use redis if connection closes before the session is over.

lib/server.coffee

@@ -30,6 +30,7 @@ port = config.get("#{service.toUpperCase()}_PORT")
 useHttps = config.get("#{service.toUpperCase()}_SSL")
 
 serviceListener = require("./#{service}").listener
+onConnection = require("./#{service}").onConnection
 
 server = null
 
@@ -77,6 +78,9 @@ if useHttps
 else
   server = require('http').createServer(listener)
 
+if onConnection?
+  server.on('connection', onConnection)
+
 db.connect((err) ->
   throw err if err
   server.listen(port, networkInterface)