Make optim run only on the parameters which can be changed
Right now, in the optim functions, all parameters set in prmbound are given to optim(), should only be the ones that can actually be changes (i.e. found in $insert_prm())
Right now, in the optim functions, all parameters set in prmbound are given to optim(), should only be the ones that can actually be changes (i.e. found in $insert_prm())