physical tags, partitioning, second order prisms

free to improve...)

-This line, and those below, will be ignored--

M    Common/LuaBindings.cpp
M    Geo/MVertex.cpp
M    Geo/GVertex.h
M    Geo/MVertex.h
M    Solver/dgAlgorithm.cpp
M    Solver/TESTCASES/ForwardFacingStep.lua
M    Solver/dgSlopeLimiter.cpp
M    Solver/dgSystemOfEquations.cpp
M    Solver/dgConservationLawPerfectGas.cpp

related to parameters being wrong.

CreateTopologyFromMesh more accurate
Possibility to partition also Faces and not only GModels

never ever change the immutable vertex numbers: otherwise we cannot use
our algorithms from outside with prescribed boundary meshes

-> use MVertex::_index instead

(renamed setNum to forceNum to make sure we don't use setNum by mistake)

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

added createtopologyFromMSH to create Topology from list of triangles

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

reparametrization through harmonic maps enhanced

consolidate parametricCoordinates with reparamMeshVertexOnFace

cleanup high order