C. A. 5th Cir. [Certiorari granted, 449 U. S. 950.] Motions of Michigan Rehabilitation Association et al.; Legal Action Center of the City of New York, Inc.; American Civil Liberties Union et al.; Deaf Counseling, Advocacy & Referral Agency, Inc., et al.; and American Coalition of Citizens with Disabilities et al. for leave to file briefs as amici curiae granted.