Removed all compile-time depdencies on byte ordering (big- or little-
endianness). Replaced them with run-time conversions where necessary (only
for packing/unpacking of colors into unsigned ints). Performance hit
should be negligeable, but this will allow to compile Universal Binaries
on Mac in a single step (instead of having to compile the PPC/big-endian
and the i386/little-endian separately, which wouls be a royal pain in the
butt).

change default browser on non-Win/Mac to firefox

added radial gradient ;-)

don't print the stupid category headers if in 'diff' mode

better z-clipping planes for perspective proj (should also work for objects
far off the z=0 plane now)

make depend

better perspective projection handling (around cog+new icon in gui)

refactored Opengl_Window.handle()

should behave exactly like the old version, but now it is at least (somewhat)
readable and ready to be generalized for more complicated projection matrices

little hack to draw a gradient in the background. Nice for flashy
presentations ;-)

nicer GUI for special viewpoints:

* added "90 degrees rotation around axis perpendicular to the screen" button
  (+90, or -90 when holding Shift)
* clicking on X,Y,Z buttons with Shift now gets the view "from behind"

forgot to indent these two

disable applyOptimizationPatterns for now

quick hack to get lighting of element edges (not perfect and rather slow
but good enough for me for now)

make "BoundingBox{x,X,y,Y,z,Z}" actually do what the documentation claims
it does

Don't reinitialize the symbol tree in OpenFile.

(We don't reinitialize the option database, so why should we reinitialize
the variables? Using a single global symbol tree we can again define
variables with -string "" on the command line.)

cleanup STL remesher GUI

Don't set CustomMin and CustomMax to the Min/Max values of the view: it
can be confusing when saving options. Instead, provide buttons in the GUI
to set the custom values to Min/Max if so desired.

instead of drawing in immediate mode (in-between Draw() calls) in HighlightEntity,
just redraw the whole scene. It's slower, but on modern machines it should be OK.
This way we can deal with vertex arrays and mesh highlights easily. I will revert
this change if too many people complain...

- made meshed curves/surfaces selectable with the mouse
- better selection algorithm (use depth info to find the "closest" match)

moving all external code to contrib subdirectory

use it now with -partition N for N partitions
only works with tets and triangles
output should be added (useless for now)

mention bug on Windows without Cygwin when reading binary post-pro files

First batch of changes so that we can compile the code on windows
without cygwin. With these changes gmsh compiles and runs cleanly
without solver/jpeg/png/triangle/netgen/gsl support.

simpler tetgen integration by Jozef Vesely

generalized the solver interface to allow permanent listening on a
socket for whoever wants to connect (gmsh -listen)

the polling should also be less CPU hungry in this new version

next step is to add new commands to the protocol so that solvers can
directly transmit data to merge (geometry, mesh, etc.) in addition to
messages and filenames

- new option to choose the mesh element labels (element number, elementary
  entity number, physical entity number or partition number)

finer control of time/timestep display