rename transf params & remove unused ones in old structs

fix memory bugs

fix parser to work with new flex and bison (1.28 -> 2.3)

constness fixes

added adaptive view options in the view's option db

removed global THEM

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

add experimental support for automatic on-the-fly boundary computation
in vertex arrays

- fix crash in Plugin(MakeSimplex)
- fix main bbox computation when one view has an empty bbox

fix crash in batch mode

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)

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