the hostname of the "Local Folders" server, or for the name of the directory on disk. if we did, as soon as someone localized "Local Folders" migration would break. while I'm here, only hard code these strings once. to allow people to build without mailnews, hard code them in nsIPrefMigration.idl r=alecf git-svn-id: svn://10.0.0.236/trunk@71330 18797224-902f-48f8-a5cc-f745e15eee43