(Only the first 10 of 22 ports in this commit are shown above. )
Overhaul for the inn ports:
- Turn inn-stable and inn-current into slaves, as they are pretty much
clones of news/inn.
- Update the above ports to recent snapshots.
- Allow inn's database and spool directories to be placed outside
PREFIX (e.g. under /var).
- Add OPTIONS knobs.