`cmake` build from binary issues

[sbryngelson]

Two things

1. If you attempt to build MFC on a compute node, not every compute nodes seems to be able to fetch the cmake binary. Expanse seems to be an example of this. Maybe a ping or something could check if a connection is actually working.
2. Even if you do get cmake from binary, MFC still issues a warning

exp-1-57: project-bryngelsonPI/MFC $ ./mfc.sh
./mfc.sh: line 82: cmake: command not found

even though it actually works in the end.