schemas/VegCore/.htaccess: added RewriteBase to support relative redirects. this enables auto-prepending dir name if it's part of the filename, e.g. VegCore/ERD.pdf -> VegCore/VegCore.ERD.pdf).

web/.htaccess: prepend dir name if it's part of the filename (this works only if the dir supports relative redirects and sets %{ENV:innermost_dir})

schemas/VegCore/VegCore.ERD.mwb: made matched_taxon and accepted_taxon inherit from taxon instead of qualified_taxon because they don't contain the cf_aff (cf_aff.vegpath.org; aka identificationQualifier) that makes a taxon qualified

schemas/VegCore/VegCore.ERD.mwb: removed occurrence table, because it's really a synonym for taxon_occurrence ("specimen, observation, etc." <http://rs.tdwg.org/dwc/terms/#Occurrence&gt;)

schemas/VegCore/VegCore.ERD.mwb: added labels for the left and right halves (event and occurrence). rearranged tables to help separate event- and occurrence-related tables.

schemas/VegCore/VegCore.ERD.mwb: rearranged to leave more space for location_observation, and to put all event-related fields on the left and occurrence-related fields on the left

web/.htaccess: parse dotpath in query string: heuristically detect query strings that don't contain dotpaths (such as mod_autoindex sort conditions), rather than always interpreting the part before the first & as the dotpath. now, the part before the first & will be interpreted as a dotpath if it has a . before any = . (query param names containing . are rare, so this usually works correctly.) note that you can always prepend . to force a dotpath, or & to force a query param.

web/dotpath.php: remove any . prefix which forces interpretation as a dotpath

schemas/VegCore/VegCore.ERD.mwb: taxon_concept: renamed source to according_to

schemas/VegCore/VegCore.ERD.mwb: removed no longer used images from zip archive using `zip -d`. this needs to be done every time an image is deleted from the diagram to remove it from the archive (and reclaim the unused space, since `zip -d` will also shrink the archive). note that you can't just expand and re-zip the files, because there is a header of some sort that indicates to MySQL Workbench that it's a valid .mwb file.