This fixes #117

Created by: guj

Created by: chuckatkins

It looks like this commit does much more than just address #117 (closed). Can you please adjust the commit message accordingly?

Created by: chuckatkins

@guj What does this branch do?

Created by: williamfgc

I am going to merge as this is mostly examples and the fix for #117 (closed). @guj please follow @chuckatkins flow for which each branch is a separate topic. I need to merge this for the adios2 namespace change. Thanks!