T,M,J Options produce segmentation fault errors #87

the compact 3D BLOCK2 tests produced the following results:
-T Rank-zero segmentation fault. Worker polarization indices appeared as **.
-M Rank-zero segmentation fault with both two and four MPI ranks.
-J MPI abort when the first adjoint solve received a right-hand side containing NaNs.

The problems were integration errors around the newer MPI/SP2 and model-I/O code, rather than a single failure in the electromagnetic solver.