Initial Sequelize integration.

Added orm module to abstract Sequelize usage to some degree. ORM module
handles the configuration and instantiation of Sequelize. Models are
defined and instantiated from models/*

Tested only against SQLite.

Faily new to nodejs so I probably messed up with something.

sample.config.js

@@ -1,6 +1,11 @@
 var config = {
-  db_user: "",
-  db_password: "",
-  db_name: ""
+  db: {
+      user      : '',
+      password  : '',
+      name      : '',
+      options   : {
+          dialect: 'sqlite'
+      }
+  }
 };
-module.exports = config;
+module.exports = config;