Start to implement the non-generic API

To browse the non-generic API, open http://127.0.0.1:8000/api/
in your browser.

GET /api/hikes lists all the logged in user hikes
GET /api/notes lists all the logged in user notes

GET /api/hikes/some-uuid returns a given hike
DELETE /api/hikes/some-uuid?revision=some-revision deletes the given hike

GET /api/notes/some-uuid returns a given note
DELETE /api/notes/some-uuid?revision=some-revision deletes the given note

POST and PUT not tested yet, consider it not implemented.