- Google Authentication integration is almost completed.
- Create Account and User relationship
- Unit tests are not ready.
Merge branch 'master' of https://github.com/nkhoang/ja13sec04jav

Conflicts:
	core/src/main/java/com/hnk/aws/model/Account.java
	core/src/main/java/com/hnk/aws/model/User.java
	core/src/main/java/com/hnk/aws/service/impl/UserServiceImpl.java
	core/src/test/resources/sql/data.sql
- rename class to fix IDEA issue.
- Move img folder to resources folder.
- Change google login image URL.