Changed configuration parameters' names to match sequelize nomemclature

Fixed seed/initial_tasks data which created tasks in a non-sequential order (tested on Postgres)
Added production-like example configuration

db/models/task.js

@@ -3,9 +3,9 @@ var Sequelize = require('sequelize');
 module.exports = {
     instance: function(orm) {
         task = orm.define('Tasks', {
-          id 		     : {type: Sequelize.INTEGER, primaryKey: true, autoIncrement: true},
+          id         : {type: Sequelize.INTEGER, primaryKey: true, autoIncrement: true},
           content 	 : {type: Sequelize.TEXT, allowNull: false},
-          parent 	   : Sequelize.INTEGER,
+          parent     : Sequelize.INTEGER,
           isCompleted: Sequelize.BOOLEAN,
           createdAt  : Sequelize.DATE,
           updatedAt  : Sequelize.DATE