* store max vertex/element number on a per-model basis (removed globalNum in MVertex/MElement). This should be improved, but forcing a GModel in the MVertex and MElement constructors

* use filename as a "partition indicator" in readMED (for both meshes and views), so we can deal with DDM datasets in MED (MED does not store partition numbers)

a frame solver is made
changed INRIA MESH output
removed feaure in BL field
started to do MNT diagrams
 

Re-organized and cleaned up nodalBasis/polynomialBasis/JacobianBasis. Enabled higher-order bases for prisms. Fixed and completed shape functions and Jacobian for pyramids. Fixed bug in computation of Bezier exponents for hexahedra. TODO: OptHOM bug with pyramids to be fixed, clean-up of bases (point generation) to be completed.

- getfunctionspaces now returns a nodalBasis instead of polynomialBasis
- reversed order for saving elements in GModelIO_MSH - makes things simpler for subelements
- taking msh file version into account while exporting data files (PView ...)

Major work on GUI : removed much-hated "menu window" & merged onelab tree in graphic window. Gmsh now requires FLTK 1.3.

(Additional changes: fixed crash when de-minimizing opengl window on mac os ; refactored Msg::StatusBar)

Implementation of high order pyramids. Introduces nodalBasis as a parent class of polynomialBasis and pyramidalBasis.

Modified PViewDataGModel to allow for multiple views in the same file
and multiple PViewDataGModel::write() call

start implementation of MSH3 format:

- refactored old MSH I/O into GModelIO_MSH2
- new MSH3 will be GModelIO_MSH