I'm back

quick update: looks like I've cleaned up most of the cruft in the code, however now have to deal with error messages from cf.py that still tries to generate weights in parallel. On a bright side, I've run tests with lissom_oo_or_mpi.ty (before getting rid of the parallel weights generation code on the mpi-side) and it seems to be working fine. Anyway, the short-run plan is to fix the bug with weights, then move the pmi initialisation code away from the topographica launch script and then run some tests for correctness with lissom. Hoping to achieve that tomorrow.