reinterfaced adaptive views with new post-pro

upgraded all plugins to work with the new post-pro.

This is done "cheaply" for now, by only using old-style list-based datasets.
Taking advantage of the abstraction (so that we can use the plugins on all
datasets) will require more work. The hooks for transparent data translation
are in place, but the actual translation has not been implemented yet.

moving to new post-processing database

                    *** WARNING ***

do not upgrade if you need plugins or adaptive views: these have not
been ported (yet) to the new database

                    *** WARNING ***

airplane work: more work to complete remaing features (read, combineSpace,
combineTime) in new post-pro

allow Function Field(1)="expression"; (without extra empty list at the end)

added simple boundary operator in parser

add bit of code to intersect curves with a surface (allows to do "poor man's"
trimmed patches ;-)

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

- better SplitFileName (e.g. to remove full path from
  \includegraphics{} in .tex files)

- better interactive positionning of projection surfaces

Bezier curves are broken

small cleanups for 2.0.8

prepare for post-pro changes by moving all post-pro stuff in separate directory

fix fouriermodel depend

- better tol in checkMeshCoherence()

warning->error when trying to assign explicit reg ids in extrusions
+ add note in doc for this

implemented "Save groups for nodes" for unv

format needs to be verified

dos2unix

add test version of fourier model

tCircle and tCoherence were removed from the lexer? WTF?

- 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

Jonathan

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

we use the Lawson algorithm for 3D surface and the smallest circumsphere
of the triangles as circumcircle.

JFR

prepare for named string expr

- tentative fix for the "mysterious" crashes on Windows:

  I think that the problem comes from the new recursive tetra
  classification, where we probably overflow the stack on Windows. The
  fix is to request a larger initial stack size through the linker.

- added option to control label saving in unrolled geo files

- only test for neg jacobians for 2D/plane meshes for now

- fixed several compiler warnings

- preliminary work to interface more parser functions with general
  GEntities

- we can now export simple GModels as.geo files (points, straight line
  segments, plane surfaces, ruled surfaces and volumes are treated
  correctly; all non-straight-line curves are exported as splines; all
  non-plane/ruled surfaces are not exported)

- tentative fix for the unv export problem reported on the mailing
  list (fprintf() buggy on some machines??)

- new IO (both read and write) for structured grids using the NASA
  Plot3D format (for Olivier)