Appeal from D. C. E. D. Pa. [Probable jurisdiction noted, 401 U S. 991.] Motion of David A. Scholl for leave to argue orally pro hac vice on behalf of appellants granted. Motion of Pennsylvania Credit Union League for reconsideration of order denying leave to argue orally as amicus curiae denied. Motion of American Bankers Assn, for leave to file a brief as amicus curiae granted. Motion of Pennsylvania Land Title Assn, for leave to argue orally as amicus curiae denied.