Added routines to read the canonical UNIX configuration file. This will
later be applied to a number of programs (inetd for instance) to clean
out the bogus code doing the same thing, modulus all the bugs.

If you need to read a '#'-is-a-comment-file, please use these routines.

I realize that the shlib# should be bumped (for the non-US world:
increased by something), but will defer this until something significant
happens.