Add types and functions for mpi
Modify setup for mpi include dirs
Implement set_fapl_mpio
Add mpi option to File constructor
Add logic for settable MPI building
Tweak MPI config in setup.py
Fix argv problem with mpi config
Add mpi property to global config object
Add config.pxi to gitignore
Implement mpiposix and rename mpi -> mpio
Initial version of auto-detect script
Version and mpi cleanup
Remove obsolete detect module
cleanup & tests