- remove SIGCHLD handler because it is no longer needed and was causing
        expire problems.
    - alter expire locking of multi-mounts to lock sub-tree instead of entire
        tree.
    - review verbose message feedback and update.
    - correction for expire of multi-mounts.
    - spelling corrections to release notes (Jeff Moyer).
    - add back sloppy mount option, removed for Connectathon testing.
    - disable mtab locking again.