MCZbase/MCZbase: MCZbase version as of v2021-02-01 commit 73e9e860

Snapshot release of MCZbase, the Natural Science Collections data management system branched from Arctos and in use by the Museum of Comparative Zoology, Harvard University as in production use at the MCZ on 2021-02-01. Incorporates all changes since December 2017 release, including redesigned taxonomy search, redesigned accession searches, redesigned create/edit accession and loan forms, new unamed collection/named group of cataloged items grouping functionality, new controlled vocabularies for collecting event number series and application of agent roles to transactions, support for spatial shapes for georeferences, incorporation of TDWG BDQ time tests. The menu has been redesigned with organization based on results from user group meetings. This release goes with the v2021Feb1 DDL release of the MCZbase schema.