client: fixed feature type check for production build In the production build code gets minified, which includes function names. So checking for a specific function name like (constructor.name) doesn't work.

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`