Get rid of trailing spaces
Stop changing sys.path, add __init__.py files, use full path to directory /include
Start moving the demonstration programs to a subdirectory
Get rid of temporary files, and put in a full .gitignore
Finished moving demos to a subdirectory
Renamed include to pi3d and moved pi3d.py into it as __init__.py
Started to clean up __init__.py, once pi3d.py
Cleaning up pi3d.merge
More clean up for pi3d.merge
More cleaning up of pi3d.merge
More cleaning up of pi3d.merge: remove local variables
More cleaning up of pi3d.merge
Spun off display as a separate class file
Get rid of deprecated lower-case display class
Extract MergeShape from __init__.py
Clean MergeShape
Final clean of MergeShape
Rename create_shape to Shape
Extract out Cuboid
Extract out Plane