Give up on successive overlays to replace the shadow image.  It's just too failure-prone and complex, and I'll need to work around the issues with volfs some other way (like whining at the filesystems team).
Give up on successive overlays to replace the shadow image.  It's just too
failure-prone and complex, and I'll need to work around the issues with
volfs some other way (like whining at the filesystems team).

git-svn-id: 620571fa9b4bd0cbce9a0cf901e91ef896adbf27@9848 d073be05-634f-4543-b044-5fe20cf6d1d6

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