New Wiki

Preparing the new release and since now MediaWiki is possible on SourceForge, we are moving the old
and pretty crappy wiki in the wiki-tab to a new
Mediawiki at
http://apps.sourceforge.net/mediawiki/travelingsales/index.php?title=Main_Page

It has more options to categorize articles, use templates and inter-wiki-links. This simplifies
linking between plugin-interfaces and plugins implementing them and avoids lots of dublication in linking to the javadoc and sourcecode of classes from the wiki.