client: map: fixed loading animation for layers Zooming out to the user specific map extent right after the map has been rendered initially interrupts the loading process for layers with a maxResolution that is exceeded by that. This leads to the loading flag of the layer source to be never set to false until you zoom to a resolution where these layers are active again. This is an unexpected behavior that will be reported to upstream. (https://github.com/openlayers/openlayers/issues/9503)

The gemma database schema requires PostgreSQL >= 11.

`dot.tmpl` is a template file for `postgresql_autodoc`
to be more similiar to UML and leave out some less useful labels.

See  `../docker/README.md`