tor-dirmgr: Never expose a DirMgr without a NetDir
Right now, you can have a DirMgr that doesn't have any directory info at all. Instead, we should make it so that if you get a DirMgr, you're bootstrapped.
Right now, you can have a DirMgr that doesn't have any directory info at all. Instead, we should make it so that if you get a DirMgr, you're bootstrapped.