etc/bashrc
- improved robustness when sourcing
- source top-level prefs.sh first (for sysadmin changes)
etc/config.*/settings
- write job control information to the user directory
- site/ directory under the OpenFOAM project dir, not its parent dir
etc/config.*/mpi
- added USERMPI as place for spack mpi information
mgridgen, zoltan:
- make location configurable
metis, scotch:
- also check lib path (not just lib64)