converted biggles.py to new style classes and extended calling syntax
converted confit.py to new style classes
converted geometry.py to new style classes
converted geometry.py to new style classes
updated contour.py to use new style classes and extended calling syntax
updated hammer.py to use new style classes and extended calling syntax
updated renderer.py to use new style classes and extended calling syntax
updated renderer.py to use new style classes
Merge pull request #24 from esheldon/master

Converted to new style classes and extended calling syntax