add activate to list of targets that need deps installed (https://trac.macports.org/ticket/25239), factor out check into a helper proc
add activate to list of targets that need deps installed (https://trac.macports.org/ticket/25239), factor out check into a helper proc

git-svn-id: 620571fa9b4bd0cbce9a0cf901e91ef896adbf27@68806 d073be05-634f-4543-b044-5fe20cf6d1d6

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