- fix bb computation to avoid model jumping around when adding points in z=0 plane
- pass interpol matrices as ref

fix compilation problem with gcc4.3.2

- added automatic transfinite corner selection for volumes

window with experimental tree browser

fix for "implicit" transfinite surfaces

rewrote generic newton with fd.

last func using GSL is minimize_N.

removed parFromPoint and closestPoint from GEdge; replace their use in
cgns code by appropriate reparamMeshVertex calls (not tested: I don't have
cgns)

removed now unused golden section minimizer (brent), now unused

More "numeric" work: removed all traces of Numerical Recipes, as the
NR license is incompatible with our use. Replaced with Lapack for
LU/SVD. Still need to recode newt & brent.

replace touchSubmatrix() & co with copy()

full code now works without GSL (even ho)

move integration routines to Numeric/

changed -part command line handling