Introduce sequelize migrations to create and migrate database tables and removed database scripts. See http://sequelizejs.com/docs/latest/migrations

Created seeds to initialize database with dummy tasks.
Introduce config module to handle configurations per environment. See https://github.com/lorenwest/node-config
Updated README.md to reflect changes.

db/models/task.js

@@ -0,0 +1,17 @@
+var Sequelize = require('sequelize');
+
+module.exports = {
+    instance: function(orm) {
+        task = orm.define('Tasks', {
+          id 		     : {type: Sequelize.INTEGER, primaryKey: true, autoIncrement: true},
+          content 	 : {type: Sequelize.TEXT, allowNull: false},
+          parent 	   : Sequelize.INTEGER,
+          isCompleted: Sequelize.BOOLEAN,
+          createdAt  : Sequelize.DATE,
+          updatedAt  : Sequelize.DATE 
+        });
+
+        orm.sync();
+        return task;
+    }
+}