nose tests written for basic functions of the crease pattern
and opt_crit and eq_cons
fixed the case when goal_function_type = 'none' ... direct computation,
no optimization problem.
new subpackages for eq_cons, opt_crit, crease_pattern_factories created
Constant length constraint cleaned up
crease pattern operators extended by angle based expressions .. crease
angle evaluation and associated tests
Calculation of dihedral angle using cross product inserted.
Bases of Face lines available.
segmentation has been equipped with matching of nodes at identical
positions.