Added PyOpenSCAD dir
Added very basic instruction page.
Re-added licensing header that had been left out by mistake.  Oops!
updated TODO
-- Changed license to LGPL 2.1+, with permission of original author Phillip Tiefenbach (wizards23@gmail.com)

-- openscad_object.add() now accepts arrays of objects as well as single objects
Added __call__, __sub__, __mul__, and __add__.  Syntax is now much closer to OpenSCAD's, so that

union()( a, b)  is valid Python for  the OpenSCAD union(){a, b}

Also,
a+b is equivalent to  union(a,b)
Thanks for the ideas, Elmo!
checked off openSCAD syntax TODO, since the __call__ mechanism mostly accomplishes this
segments arg to TODO
Merge pull request #2 from etjones/master

Capture PyOpenSCAD work by etjones