Bump version

Author: Tony Brar

index.js

@@ -1,5 +1,5 @@
-var PROTOCOL_VERSION = 12;
-var COMPATIBLE_VERSIONS = [11];
+var PROTOCOL_VERSION = 13;
+var COMPATIBLE_VERSIONS = [];
 var PORT = process.env.PORT || 5000;
 
 var ws = require('ws');