C. A. 10th Cir. The order entered April 20, 1992 [ante, p. 978], is amended to read as follows: Certiorari granted, judgment vacated, and case remanded for further consideration in light of § 27A of the Securities Exchange Act of 1934, as added, 105 Stat. 2387, 15 U. S. C. §78aa-l (1988 ed., Supp. III).