This includes changing a lot of routes and parameter names to be more
consistent. We try to remain backwards compatible as much as possible
by providing redirects from old routes and parameter names.

This introduces a proper notion of genome assemblies. Transcript
mappings for alle genome assemblies are in the same database, which
is better for maintenance. Updating transcript mappings is also
simplified a lot, especially from NCBI mapview files where we now
require a preprocessing sort on the input file.

Overall, this port touches a lot of Mutalyzer code, so beware.

Port the entire batch job infrastructure, including scheduler, to use
the SQLAlchemy ORM instead of the old Db module.