Change in topics in CA

[Greg Kuperberg <greg@matching.math.ucdavis.edu>]

Hi.  At the request of the SIAM interest group in special functions
and orthogonal polynomials, I changed the list of topics for CA at
the Front and I request the same change at xxx:

CA* Classical Analysis
      Special functions, orthogonal polynomials, harmonic analysis, ODE's,
      differential relations, calculus of variations, approximations,
      expansions, asymptotics

				Greg