more robust: avoid crash on non-Linux systems;

clarified webserver names;

proper Apache.php_name;

proper packages for mercurial_setup on Ubuntu 22.04: building from source provides hgweb modules, and also provides a defined version (6.1.1 is also provided by Ubuntu 22.04);

tuned source structure;

more robust systemd configuration;

more robust nginx configuration, notably for "certbot --nginx -d DOMAIN";

tuned whitespace in generated file;

tuned;

clarified modules;

recover Url.is_wellformed from before d8330439823a, e.g. relevant for JEdit_Resources.read_file_content (the URI alone does not necessarily have a protocol prefix, so plain file-path would be treated as URL);

proper php-fpm configuration for nginx;

support multiple webservers: Apache or Nginx;

tuned;

clarified signature: explicit type isabelle.Url to avoid oddities of java.net.URL (e.g. its "equals" method);

unused;

enforce rebuild of Isabelle/Scala + Isabelle/ML;

updated to postgresql-42.7.1;

updated to sqlite-jdbc-3.45.0.0, including slf4j-1.7.36;

update to llncs-2.23; update src/Doc/Demo_LLNCS to include the new mandatory section "Disclosure of Interests";

clarified bootstrap;

clarified directories;

clarified directories;

obsolete (see also fc88b943e1b2);

proper output, following 2cd23d587db9;

always use patchelf on Linux: base-line is Ubuntu 18.04 where that works properly (see also e79294c4230c);

clarified directories;

more accurate Isabelle versions;

more accurate Ubuntu versions;

more uses of define_time_fun