Fri Apr  3 11:11:40 EST 1998
  main.c: return solve_result_num to AMPL.

Wed Jul 29 09:38:31 EDT 1998
  README: add table of possible solve_result_num values.

Wed May  5 11:08:29 EDT 1999
  README, main.c: add iteration counts to solve message; if dual
values may be wrong because of BPMPD's presolve phase, note this in
the solve message and return solve_result_num = 1 (rather than 0) when
BPMPD claims to have solved the problem.
