points to a Curve.
New supporting module CurNurb to provide access to the curves in a Curve
and their associated points.
Curve module now supports Python iterator and sequence protocols.
This allows typical python programming idioms using 'for' statement
and the [] operator.
# example 1
for curve in a_curve:
for point in curve:
print point
#example 2
curnurb = a_curve[0]
curnurb.append( [1,1,1,1] )
Still under construction. Epydoc will follow.
