Hopefully, this is final updates for install and uninstall targets.

Hopefully, this is final updates for install and uninstall targets.
- Fix typo in chown syntax
- chmod on mkinstalldirs to make it executable (is there a better way?).
- Cleanup comments, and revert most of previous output cleanup changes.
- Include all HTML docs, since there are cross links between these.
- Improved group handling (still some potential problems, see FIXME).
- Update PHONY targets.
- Uninstall was not removing CONF and LOG destinations in some situations.
- Various other minor cleanups.