Merge pull request #16 from sdeleuze/master

Move to JPA for easier testing
Merge pull request #17 from sdeleuze/master

Update to latest RESThub 2.1.2
Merge pull request #18 from sdeleuze/master

Update Backbone Associations + locale mgmt fix
Update RESThub version
Rollback version and update Backbone stack
Merge branch 'master' of https://github.com/resthub/todo-backbone-example
Add Swagger REST documentation