disable option for 2 Pview (making difference between curved and straight-sided elements for non-simplex elements is more complex and makes less sens).
add possibility to compute 2D and 3D elments in one run.
add possibility to show PView for J and R in one run.


git-svn-id: https://geuz.org/svn/gmsh/trunk@19420 59c8cabf-10d6-4a28-b43f-3936b85956c4
fix memory leak


git-svn-id: https://geuz.org/svn/gmsh/trunk@19421 59c8cabf-10d6-4a28-b43f-3936b85956c4
fix compile


git-svn-id: https://geuz.org/svn/gmsh/trunk@19422 59c8cabf-10d6-4a28-b43f-3936b85956c4
fix annoying warnings at compilation


git-svn-id: https://geuz.org/svn/gmsh/trunk@19423 59c8cabf-10d6-4a28-b43f-3936b85956c4