* give the possibility of calibrating measurement errors in the "shocks" blocks (only for observed endogenous variables)
* M_.H is now initialized in the preprocessor
* only one "varobs" statement is now accepted in a MOD file
* Reference manual: created a section on forecasting (with "forecast" option), and added the three new statements to that section
git-svn-id: https://www.dynare.org/svn/dynare/trunk@3049 ac1d8469-bf42-47a9-8791-bf33cf982152