ATTENTION: How to enable CRUD module
1. Go with your console to eclipse_project/tradegrade/
2. Do play dependencies in this folder
3. Refresh your project in Eclipse
(4. Check the path of your CRUD module in
eclipse_project/tradegrade/modules/crud)

Added admin area for model user

Create a new controller named Examples.java for each model named
Example.java, to integrate it to the admin area.

Access admin area by /admin (currently not secured)