Add update script

update.js

@@ -0,0 +1,21 @@
+var Config = require("./config.js");
+var Database = require("./database.js");
+
+Config.DEBUG = true;
+Database.setup(Config);
+Database.init();
+var query;
+var db = Database.getConnection();
+
+// Check for already existing
+query = "SELECT email FROM registrations WHERE 1";
+if(!db.querySync(query)) {
+    query = "ALTER TABLE registrations ADD email VARCHAR(255) NOT NULL";
+    var res = db.querySync(query);
+    if(!res) {
+        console.log(db);
+        console.log("Update failed!");
+    }
+}
+db.closeSync();
+process.exit(0);