Initial import of new ported tryexcept and pyexceptions patch for VTK 5.8!
Initial import of new ported tryexcept and pyexceptions patch for VTK 5.8!

codester2/devide.johannes,nagyistoce/devide.johannes,chrisidefix/devide.johannes,ivoflipse/devide.johannes,nagyistoce/devide.johannes,codester2/devide.johannes,ivoflipse/devide.johannes,fvpolpeta/devide.johannes,chrisidefix/devide.johannes,fvpolpeta/devide.johannes