* sample/Fifteen.cs: Fixed movement logic. It works now. Added 'debug' flag. Run 'mono ./Fifteen.exe debug' to see movement info. svn path=/trunk/gtk-sharp/; revision=6491
svn path=/trunk/gtk-sharp/; revision=6479
* sample/Fifteen.cs: Added new canvas example. svn path=/trunk/gtk-sharp/; revision=6478