An image can be associated to a place
Refactoring: removed unused code in tests
Tests in a separate package
WIP PlaceRepository
The home page displays the first place
Alembic version files begins with slug rather than with the random id
places id is a guid rather than an integer
tags can be added. If they are associated to the first place, they are listed in home page
/admin/tags/add associates a new Tag to an existing Place
When a tag is appended to a place, it is not created if already existing
A Place can be created providing it an id
A json list of all places can be retrieved with /admin/places

A json list of all places can be retrieved with /admin/places, using an ad-hoc internal method
The home page shows a list of all places