Update
Merge pull request #6 from blackvladimir/master

COLOR with only one argument
Cancelling rotaterel
Update
Update
WOOD
Update 3D rotation.
Improving INTERSECTION
Bugfix
Bugfix 2
Improving SIZE
Cleaning up
BRASS repaired
Improving GETDIM
Better error message in SHOW command
Improve error messages
Improving error messages.
Improving error messages
Improving error handling
Improving error reporting