* special handling for IE6/IE7 (it's still ugly, but not as ugly as before)
* caching of the glossary
* if for a term only a link and no definition is specified, insert that link (only works with the Semantic Glossary extension)
* bugfix (annotation of text between nowiki tags)
* bugfix (Non-static method DOMDocument::loadHTML() should not be called statically...)
* improved internationalization