setup.sh and setup.bat: Eliminated deprecation warnings by specifying exact version of some packages.

More particularly:
    pip install mayavi==4.3.0
    pip install traits==4.3.0
    pip install traitsui==4.3.0
    pip install pyface==4.3.0

This is not an elegant solution, but the perfect is the enemy of the good
enough. So first I make it work, then I hope to refactor.