4.0: merged r2307, r2308 changeset from trunk (mr_hessian.m: refined search;...

4.0: merged r2307, r2308 changeset from trunk (mr_hessian.m: refined search; newrat.m: help and messages)

git-svn-id: https://www.dynare.org/svn/dynare/branches/4.0@2485 ac1d8469-bf42-47a9-8791-bf33cf982152