Documentation Update

The documentation has been reworked to make it cleaner and also easier to add new docs. There is an online version at https://sourceforge.net/docman/display_doc.php?docid=9824&group_id=6633. There is also a new document describing how to add documentation at https://sourceforge.net/docman/display_doc.php?docid=10055&group_id=6633. The docs are now in CVS and there are new tasks to make the updates.