Update to 20010827.

pkg_fetch:

• Yet another new utility, which downloads binary packages from a remote site. Optionally it can also download the required packages recursively.

portupgrade:

• Do not regard "no package found" as an error when upgrading packages with -PP.

pkgdepfix, portsclean -L:

• Fix a problem where the ruby 1.6.4 release fails in error.
  
  Reported by: David Wolfskill <david@catwhisker.org>

portcvsweb:

• Explicitly execute a browser via /bin/sh, as the specification says.

other stuff:

• Improve the manpage and the completion definitions.