Got ACL scope logic working again and began enforcing it. Breaking API change: assigning page title with $template->tpl_strings['PAGE_NAME'] will no longer work, use $template->assign_vars(). Workaround may be added later. Test for assign_vars method if compatibility needed. Added namespace processor API (non-breaking change). Several other things tweaked around as well.

ins {
	border-bottom: 1px solid green;
	text-decoration: none;
	color: green;
}

del {
	color: Red;
	text-decoration: line-through;
}

cite {
	border-bottom: 1px dashed blue;
}

acronym {
	border-bottom: 1px dotted #CCC;
	cursor: help;
}

abbr, html\:abbr {
	border-bottom: 1px dashed #CCC;
	cursor: help;
}