Appeal from D. C. M. D. Pa. [Probable jurisdiction postponed, 401 U. S. 992.] Motions of Washington State Federation of Fraternal, Patriotic, City & Country Clubs, Lawyers’ Committee for Civil Rights Under Law, Benevolent & Protective Order of Elks of the United States, and American Jewish Committee et al. for leave to file briefs as amici curiae granted.