make '0' shrotcut ("reload") work more like in previous versions (just push
back new model on the pile, don't clear everything else: useful when modifying
geometries on the fly to show changes)

renamed most gmsh* classes

Plugin/Triangulate.cpp
Post/PView.cpp
Post/PViewDataRemote.h : Change for compilation on SunOS

CMakeLists.txt : Change mkl libraries on windows

change Spline to BSpline in GSHHS plugin (I hoped MinStraitsFactor Option would allow to use Spline but it's not the case...)