Hi Robert,
Well, the mailing list has been almost dead lately, so it's good to have
some discussion here finally :)
Good job, thanks!
The error you see is due to a small change in material definition
syntax, as described in the issue 93.
However there were other, deeper, problems, that required fixing the
sfepy code itself (see the new issue 99). Try the new git version, and
let me know if that works. In that case, also close the issue, please. :)