Gil python Calls
Applying GIL PYTHON patch
- Defining a gilEnsurer class to use as RAII for gil
- Ensuring critical calls to python, where they could be concurrency, only when a cmake option is defined
- Correcting the access to python in vtkPythonInterpreter::Initialize
- Forcing the use of gil in the Interactive Python Interepreter for auto completion http://www.vtk.org/Bug/view.php?id=15699
- Forcing the use of gil for prependPythonPath : http://www.vtk.org/Bug/view.php?id=15698
May be all call to GIL should use the new class.