[DynareDev] [Trac] #284: check values returned by likelihood functions and their use in calling functions

#284: check values returned by likelihood functions and their use in calling functions ------------------------+-------------------- Reporter: michel | Owner: michel Type: bug | Status: new Priority: major | Milestone: 5.0 Component: Estimation | Version: Keywords: | ------------------------+-------------------- check value of fval when returned by DsgeVarLikelihood.m and non_linear_dsge_likelihood.m. Check the use of fval and exit_flag in the functions calling dsge_likelihood.m, DsgeVarLikelihood.m and non_linear_dsge_likelihood.m