Rewrite Netbeans e-commerce tutorial using Spring framework

1. Designing application:
   • Scenario
   • Requirements
   • Mockups
   • Architecture
2. Setting up development environment:
   • IDE: Spring Tool Suite
   • DBMS: MySQL
   • Create a new Spring MVC template project
   • Template engine: Velocity or Thymeleaf; Layout: Bootstrap
3. Preparing views and controllers (front-end).
4. Designing data model:
   • Identify the entities and their relationships
   • Follow bottom up or top down approach using Hibernate
5. Developing business logic.
6. Integrating with front-end.
7. Others:
• Securing the application
• Adding language support
• Testing
• Deploying on OpenShift -> visit demo app:
• The front store
• The admin console (username/password found in sql_scripts/admin-console_data.sql)

From: https://github.com/sunshine55/affablebean-spring-tutorial