Robust endpoint (#148), Only model ID to clone (#150), Enable dataset repositories (#151)
* More robust endpoint with toggled staging endpoint
* Rework snapshot download to use Staging
* Design the URL template according to the environment variable
* Add decorator for production testing
* Add git user/email for Repository
* Allow passing only model ID to clone when authenticated (#150)
* Allow passing only model ID to clone when authenticated
* Enable dataset repositories (#151)
* Enable dataset repositories
* Address Julien's review
* Better API