MOVED and UPDATING delivered with packages

[Dominic Fandrey]

The portmgr team has enhanced the pointyhead scripts to
publish MOVED and UPDATING files together with the INDEX
files that kports and pkg_upgrade use for binary package
updating.

http://www.freebsd.org/cgi/query-pr.cgi?pr=135024

Many thanks to the portmgr team!

I hope I will find the time to update pkg_upgrade
before the 8.0 release.