2002-03-07  Jukka-Pekka Iivonen  <jiivonen@hutcs.cs.hut.fi>

        * solver.c (lp_solver_init): Made to use API calls instead of
        using direct calls to LP Solve.

        * reports.c (solver_program_report): Added non-zeros statistics for the
        objective fn as well.
        (fill_header_titles): Added filename to be printed as well.