- renamed functionSpace into polynomialBasis (functionSpace will be much higher level)

renamed most gmsh* classes

make MElement and MVertex thread-safe by guarding _globalNum

- 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

call setVolumePositive() in all ::writeXXX() functions

too hard to maintain

added createtopologyFromMSH to create Topology from list of triangles

* point not found should NOT be an error in the octree

HAVE_XXX defines.

This fixes three longstanding problems:

- the API was hard to use because some headers had HAVE_XXX ifdefs, so
  that cient codes had to know how the lib was compiled to compile
  themselves

- we had to do make clean after each ./configure, which erased too
  much (e.g. most of contrib)

- make depend could include unwanted stuff since it redefined FLAGS

- fix bb computation to avoid model jumping around when adding points in z=0 plane
- pass interpol matrices as ref

move integration routines to Numeric/

reparametrization through harmonic maps enhanced

consolidate parametricCoordinates with reparamMeshVertexOnFace