Runs on PHP 8.4 without "deprecated" messages

Tested on PHP 8.2 and 8.3, minor fixes

PEAR packaging fix, no code changes

PHP 8.1 support

Fix for bug in Script element introduced in 2.2.1

New version to explicitly depend on HTML_Common2 2.2.0+

Depend on PHP 5.4+, prevent deprecated errors on PHP 7.4

Make psr-0 autoloading in composer.json more specific

Tagging release 2.1.0

Runs cleanly on PHP 7.2+
Much more composer- and autoloader-friendly: no 'require_once' statements, no 'include-path' option in composer.json

Tagging release 2.0.2