Merge branch 'master' into libpq

lib/client.js

@@ -22,6 +22,10 @@ var Client = function(config) {
   this.queryQueue = [];
   this.password = config.password || defaults.password;
   this.encoding = 'utf8';
+  var self = this;
+  this.connection.on('notify', function(msg) {
+    self.emit('notify', msg);
+  })
 };
 
 sys.inherits(Client, EventEmitter);