Added a system for loading/storing/setting user preferences; several aspects of the program can now be set by the user.  Added new tools: 4 polygon subdivision tools, polygon "turn edge", and polygon smoothing.  Improved rendering speed substantially.  Fixed some bugs related to the Python scripting entry.  Added a "log window" and code to redirect all of the program's output, especially the Python output, to the log window.  Added lots of new functions for the Python interface; the Python interface is much more useful now.  Added a new set of Python scripts, "prefabs.py".  


Added a system for loading/storing/setting user preferences; several aspects of the program can now be set by the user.  
Added new tools: 4 polygon subdivision tools, polygon "turn edge", and polygon smoothing.  
Improved rendering speed substantially.  
A single opengl context is now shared by all views.  
Fixed some bugs related to the Python scripting entry.  
Added a "log window" and code to redirect all of the program's output, especially the Python output, to the log window.  
Added lots of new functions for the Python interface; the Python interface is much more useful now.  
Added a new set of Python scripts, "prefabs.py", which can be used to insert the standard geometric primitives (cones, spheres, etc) into a model.  
