pbproj -> xcodeproj

xcode doesn't seem to be able to upgrade a project from a previous version worth crap. it'll pretend to do the upgrade ok, but then you're left with a project that has a disconcerting disconnect between invisible project settings that don't show up in the gui, and gui-added settings that have no effect on the build process. recently it seems like the only workable approach is to create a new project from scratch, and try to duplicate the old settings as best you can manually. this more than likely means opening convertedfoo.xcodeproj/project.pbxproj with a text editor, to see what the old project is really doing.