DE-POC1 - Created infrastructure of the whole FlipEuro product. Created the first two API calls (/user POST, /user/<username> GET) to Sign up. Included JUnit tests.

Unit tests in the Service layer to follow.
Single-page app to follow.
Revised the presentation layer by:

- upgrading the web descriptor to 3.0
- JSR-303 annotations have been removed as from now, onwards these are used in the service layer
- Tests have been polished and split in two - one test error API JSON mappings while the other tests generic valid API JSON call mappings
This shouldn't have been committed ... :)
DE-POC4

- INTRODUCING SERVICE-LAYER UNIT TESTS - these test the business logic within the service layer
- users can now deposit money from a credit card.