Fix the AppData and update to the latest spec version

Also, include the full size screenshot as the old one was too small to be used.

Signed-off-by: bert <bert.timmerman@xs4all.nl>
VRML reload after refactoring

Signed-off-by: Bert Timmerman <bert.timmerman@xs4all.nl>
Made compiler errors and warnings go away.

Program received signal SIGSEGV, Segmentation fault.

Signed-off-by: bert <bert.timmerman@xs4all.nl>