Announce: port_cutleaves

[Perry Lee]

Hi All,

I've gone ahead and committed port_cutleaves to contrib (I talked to  
Bryan beforehand).

port_cutleaves is an interactive script that eases the uninstallation  
of "leaves" - ports that have no dependents. You can see an example  
run here: http://svn.macports.org/repository/macports/contrib/port_cutleaves/README

After a little more testing, I will be committing a Portfile to dports.

Feel free to enhance it or fix bugs - you don't need to ask me first :).

Perry