add models parseHstore
set Callback.index to start from 0
fix the responses that were not properly sent
add Callback.toJSON()
move Handler links to a dedicated json attribute
add Callback.toJSON() test cases
add GET /:id/callbacks/ view that list callbacks for given handler id
add GET /:id/callbacks/ test cases
add GET /:id/callbacks/:index view that get specific callback details
add GET /:id/callbacks/:index test cases
ensure that fixtures are built before each Handler.toJSON test case
fix uuid regex
dev server no more rebuild the database
add debug to dev server
add a default 404 middleware