- moved GUI to FlGui + added experimental QGui to test Qt

- fixed most MSVC and gcc compiler warnings

- converted some remaining tabs to whitespace (that's why the patch is
  so large; please try to remember to indent with 2 spaces and not
  tabs when you commit stuff to CVS)

- merged modified patch from Konstantinos Poulios to allow saving
  physical/partition as element tags in mesh formats that don't
  support them natively

dimensions.

Added ability to "sacrifice" higher dimensional generators of
homology groups in order to compute lower dimensional generators faster.

Fixed all known issues with cell combining. Also greatly improved its
performance.

Bugfixes.

Bugfixes. Added notion about possible torsion of generators of homology
groups.

Bugfixes around the place.

Changed GMSH_LIBS order in configure.in in order to make linker work with
homology computation plugin under linux.

Added more message console info about homology computation.

Added "#if defined(HAVE_KBIPACK)" preprocessor directives to only enable
homology plugin & compile the code when kbipack & gmp library is avaible.

Added Geo/Homology.h and Geo/Homology.cpp as mid-interface for homology
computation (the role of utils/misc/celldriver.cpp so far). From there on
it's easy to either make plugin interface or parser interface, or both.

Made Homology Computation plugin usable.

The IO & graphics for post-processing views of the results of the homology
computation are crude at the moment: it saves the results to a separate
.msh file and reads them back by merging that to the current Gmsh session
(it uses File->Merge method).