upgrade: split upgrading dependencies into a separate proc, and use it to make sure that before new ports are installed during upgrade, their dependencies are upgraded.
upgrade: split upgrading dependencies into a separate proc, and use it to make sure that before new ports are installed during upgrade, their dependencies are upgraded.

git-svn-id: 620571fa9b4bd0cbce9a0cf901e91ef896adbf27@47756 d073be05-634f-4543-b044-5fe20cf6d1d6

macports/macports-base,neverpanic/macports-base,macports/macports-base,danchr/macports-base,neverpanic/macports-base,danchr/macports-base