web/.htaccess: Use new %{REQUEST_SCHEME} to construct self-refential URLs

web/VegBIEN/: Moved to datasources/

Added inputs/.htaccess, which parses dotpaths and adds trailing / when datasources/ subdir is listed. (DirectorySlash cannot be used for this because it would affect all subdirs, too, which must not have DirectorySlash on. Turning DirectorySlash off in each subdir would not work, because the / is added as soon as a valid filesystem path is formed, even if the inner dir would not have added the /.)

web/**/.htaccess: internal redirects: Use ?&$0 instead of just ?$0 to prevent the query string from being reinterpreted as a dotpath by the destination dir

web/VegBIEN/Redmine/*/.htaccess: Use relative URL paths. This requires adding a RewriteBase directive because these dirs can be reached by symlinks.

inputs/SALVIAS/.htaccess: Removed test RedirectMatch directive

web/**/.htaccess: RewriteOptions: Redirect dir paths without the trailing / to the datasource's homepage, and let dir paths with the trailing / point to the directory index. This is the opposite of the way it was before, and is more intuitive because the trailing / indicates a directory listing, while the trailing / would generally be omitted when linking to the datasource itself.

web/**/.htaccess: handle DirectoryIndex subrequests, which append "index" to the dir

web/**/.htaccess: RewriteOptions: Removed inherit because if the destination is not found in the current dir, a 404 should be returned instead of trying to invoke the parent dir's fallback handler (which applies only to paths in the parent dir). Ideally, we would use InheritBefore to get the subdomain preprocessing, etc., but the parent dir's fallback handler would still need to be turned off somehow when the rule was being run by a subdir.

web/.htaccess: Only forward specific terms (subpaths) to VegCore, not also the dir index itself