Bugfix release: Fixes installation and data processing issues

This release fixes some version pinning issues that prevented use of tools in the ArcGIS toolbox. The Amaptor code was separately updated and pushed, but also version pinned here so that future changes won't break this code base. Documentation was also updated with information on building distributions here and information on connecting to the database directly from R is in the wiki.

We don't currently have a separate test machine, so this installer hasn't been tested since 2017. It should still work, but just a caveat.