bug removed in GFaceCompound.cpp (sorry for that, Tristan, my fault)

JF

cross field computataion ok in 2D
high order tools bugs fixed
wing-spline is now a correct geometry
meshing in two passes is now permitted (like in bamg)

- fixed MED node ordering
- polished 64 bit Cocoa Mac OS X FLTK version
- updated copyright

* the old code has been generalized to deal with these cases
* the new "in entity" boundary layer method(s) will not create a topology of
  "boundary layer entities" anymore, so this is superfluous

CreateTopologyFromMesh more accurate
Possibility to partition also Faces and not only GModels

rewrote gmsh2DMeshGenerator to make it thread-safe

*** PLEASE TEST THAT THE 2D MESH GENERATORS BEHAVE EXACTLY AS BEFORE ***

- moved GUI to FlGui + added experimental QGui to test Qt

- fixed most MSVC and gcc compiler warnings

- converted some remaining tabs to whitespace (that's why the patch is
  so large; please try to remember to indent with 2 spaces and not
  tabs when you commit stuff to CVS)

- merged modified patch from Konstantinos Poulios to allow saving
  physical/partition as element tags in mesh formats that don't
  support them natively

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

- added automatic transfinite corner selection for volumes

- merge OCC64 patch from Jose Paulo Moitinho de Almeida

untabify

cleanup previous commit + move "carve hole" routines in separate file

Temporary fix for 'could not find extruded vertex' bug.

This is a serious bug, which is related to the way we use std::set to
search for points: cf. benchmark/bug/test_problem_point_set_search.cpp

THIS PROBLEM IS ALSO PRESENT IN BDS. WE NEED TO FIND A BETTER FIX!

new boundary layer mesh generator

refactored smooth value/smooth normal code into single SmoothData.* file

- reimplemented subdivision of extruded meshes
- fix indent + unused var + gcc warnings all over the place

some initial steps before reimplemeting extrusion

force orientation of mesh to match the orientation of the geometry