v2.4.1

This release includes updates to beta-lactamase SHV genotyping (including novel alleles, mutation tracking, and improved assignments to wildtype/ESBL/inhibitor resistant classes), based on the results of the KlebNET AMR Geno-Pheno group.
(It is the same as v2.4.0, but also fixes the SHV unit tests which were not updated for v2.4.0)