Merge pull request #28 from learning-layers/develop

First Deliverable
Set REST api version to 1,
LAPPS-68
Merge branch 'rest_api' of https://github.com/learning-layers/LAPPS into rest_api
swagger documentation for user ressource (/users/{id}),
LOGGER for exception,
LAPPS-69
Refactored so that all UsersRessource endpoints will be in one class,
swagger documentation for getAllUsers (/users),
LAPPS-69
Merge pull request #47 from learning-layers/rest_api

Set REST api version to 1