web/.htaccess: renamed REQUEST_URI_no_/ to REQUEST_URI_no_extra_/ to clarify that only an excess / is removed

web/.htaccess: moved set REQUEST_URI_no_/ under translate subdomain to path because it needs to be set right before being used to be accurate

web/.htaccess: setting REQUEST_URI_no_/: use one RewriteCond instead of two since the regexps can be combined

web/.htaccess: parse dotpath in query string: removed dotpath auto-detection code because this is now handled by a separate RewriteRule

web/.htaccess: auto-detect dotpath in query string (having a . before any = ) and mark it using a leading . . this is done as a separate step so that the dotpath is already explicitly marked as such when it's parsed.

web/dotpath.php: just match the QUERY_STRING directly, excluding &, instead of splitting apart the QUERY_STRING and then matching the dotpath portion. this allows the resulting regexp to be used directly in a .htaccess file.

web/.htaccess: prepend dir name if it's part of the filename: support MultiViews filenames without the extension, by using a lookahead request -F instead of a regular -f

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