- patch from gabriele bellussi
- added GUI hooks for new mesh editing/reparam stuff (for jacob)
- more work on fourieModel

- stores sorted order of vertex addresses
- added Equal, Less, and Hash function objects for MFace and MFace*

- added Equal, Less, and Hash function objects for MEdge and MEdge*

use MVertex::distance + better check in writePOS

spec fltk theme with -theme + minor tweaks

fix button drawing "problem" (labels get "fat" with antialiased fonts). Tip from mike@easysw.com.

fix namespace clashes with CGNS headers (patch from sguzik@utias.utoronto.ca)

- second order nodes on geometry by default
- better min/max range computation for cut planes
- more work on fourierModel

force orientation of mesh to match the orientation of the geometry

keep existing vertex numbers when reading meshes (when it makes sense)

fix missing SIGN in NR

read vertex indices separated by blanks or commas in vrml (both seem to be correct)

- added CROD in BDF
- also accept small "e" and "d" in BDF floating point numbers

added Shewchuk's robust geometrical predicates (since they can be duplicated in
Tetgen/triangle I've put them in the gmsh namespace)

small fix for neg phys

also for unv

make negative physical entities behave like they're supposed to

implement revert() for all element types and use that in setVolumePositive()

- setParameter in MVertex
- revert() for quad
- minor cleanups in I/O code
- start work on overlap mesh in fourierModel

finish BDF reader for 2nd order elements

added routines output (incomplete) second order elements in BDF

SAME REMARK AS WITH UNV: PLEASE TEST THE NODE ORDERING

make reading code a bit more compact by consolidating getVertices() in a
single routine