A minimal Gmsh "null" model can now be embedded with no external dependencies

more work on header pollution

start reducing header pollution (removed Gmsh.h + cleaned up GModel & co)

fix memory bugs

	-) A bug has been corrected in the MeshAdapt Procedure
	-) The 2D Delaunay is now Anisotropic
	-) 3D Sliver removal procedure has been improved
	-) Curvilinear mesh generation has been slightly improved,
	   even if it is still far from done
JFR

removed global THEM

(once more step towards nicer integration of old GEO stuff)

manage GModel::list automatically (like PView::list)

rewrote vertex array code for meshes in the same way we do it now for
post-processing (much simpler, pretty much same speed, and takes a bit
less memory)

- removed static GMODEL (can now have multiple models)
- added infrastructure for new post-processor module

make remove() routines safe

projection faces are persistent and should never be deleted

- better tol in checkMeshCoherence()

- polished mesh option strings in gui
- merged modified extrusion patch from <mi.benham@free.fr>

- only save mesh vertices that are used by elements

- fix warnings + indent + memory leaks in new Field classes

- temporary fix to avoid crashes in new field manager when post-pro
  views are reloaded or removed at run-time

background mesh. I've still to write some fields sub-class, but backward
compatibility should be ok now.
Jonathan
----------------------------------------------------------------------

consolidate all SVector/SPoint/SBoundinBox into header files only
+ fixed little put in SPoint3

bug: fixed nasty double free in GEdge destructor

polish + remove unused striping lib

new boundary layer mesh generator

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

- print num vert+elm after each generation
- reork tutorial a bit

- added warning dialog before attempting to append a scripting
command to a non-geometry file

- fixed mean plane computation for periodic curves

- added headers + ramn indent on Attractor files

enhancement of gmsh Surfaces

JFR

- only delete selected physicals (instead of all of them; for philou)
- move "save" button in visibility window
- small logic fix in mesh draw

- fixed missing return value in OCCVertex::reparamOnFace

- added code to highlight orphan entities (dave's idea)

- added gui for incomplete second order elements

- removed ugly static variables in 1d algo

- made sure we remove all 2d order vertices before generating new ones

removed gobal meshSize in GMODEL: for now use CTX.lc, which is correctly
updated when multiple files are merged

better mousewheel interaction

better handling of "negative" physical groups

physical entities can now be defined using a string instead of a number (and
there is a new field $PhysicalNames in the .msh format to keep track of these
strings)

finish Mesh>Edit>Delete

small optim

much faster element deletion algorithm

more work on mesh editing