Migrating McIDAS-V "Backend" Scripts to Github

**Note**: I forgot to merge this into mcidasv/master, and there are apparently a few outstanding problems (Mike reports his commits aren't in the nightlies, and inq emails). This should be left open until all the kinks are worked out.

Also, I vote for moving this stuff out of the "main" mcidasv repository and into more specific repos (as needed).