added Sander to LICENSE (since he has contributed/revised big portions)

LICENSE

@@ -1,6 +1,7 @@
 MIT/X Consortium License
 
 (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
+(C)opyright MMVI Sander van Dijk <a dot h dot vandijk at gmail dot com>
 
 Permission is hereby granted, free of charge, to any person obtaining a
 copy of this software and associated documentation files (the "Software"),