Update mpas-example.py
Merge pull request #1 from acbauer/patch-1

Update mpas-example.py
Update mpas_common
Add some example mpas.py scripts
Add a README for the catalyst mpas.py examples
Changes to work with ParaView 4.0.1.

These are changes to make MPAS work with ParaView 4.0.1. This
is currently the safest version to use for all builds of MPAS.
src/paraview_catalyst/Makefile will need to be changed to work
with anything newer than 4.0.1. The Python scripts have been
changed so that they will work when data_exploration is not
available since this was added sometime between 4.1 and 4.2.