I'd like to see a folder created where we can store example input files for components that are not actively tested (or perhaps, larger, more illustrative examples), for all the stuff that requires optional packages.

I have some stuff that requires PETSc (for now) and some Python related stuff to put there myself, and I'd like to request a few input files to start with:

1. Erik, some of your XFEM examples
2. Borek, some input files that test the subdivision code.
I want to fix up the subdivision code so that it isn't hardcoded for one special boundary condition (using sets), but I'm afraid to break stuff.
Having support for uniform H-refinement would be very helpful in a variety of ways (e.g. error checking, global adaptivity)