1.0.X -> 2.0.X
  If you had AuthNufwMaxSqlConns set on 1.0.X, be very careful when upgrading,
  as its use has dramatically changed in 2.0.X. That parameter is now to be used
  in conjunction with AuthNufwMaxSimilarSqlConns for finer control, especially
  on multithreaded MPMs. Refer to the 2.0 doc for full description of the
  options.
