- removed unneeded Spring config files
- moved i18n files to a dedicated folder

- added JPA annotations to POJO classes
- merged JPA Repos with Hibernate repos so we only use JPA
- renamed .txt files to .sql
- moved Spring configuration files so it is easier to use them inside
JUnit tests

- commented out all Spring MVC config related to content negociation so
the app works well in HTML for now
- Integrated Bootsrap look&Feel in the 'vets' section

With thanks to Rob Winch for patch submission.

+ add dedicated section for Tomcat 5.5 and Tomcat 6 LTW setup (so it's clearer)