Fix various typos (thanks lintian).

DynamicModel.cc

@@ -510,7 +510,7 @@ DynamicModel::writeModelEquationsOrdered_M(const string &dynamic_basename) const
                 }
               else
                 {
-                  cerr << "Type missmatch for equation " << equation_ID+1  << "\n";
+                  cerr << "Type mismatch for equation " << equation_ID+1  << "\n";
                   exit(EXIT_FAILURE);
                 }
               output << ";\n";

DynareMain.cc

@@ -251,7 +251,7 @@ main(int argc, char **argv)
         {
           if (strlen(argv[arg]) <= 7 || argv[arg][6] != '=')
             {
-              cerr << "Incorrect syntax for ouput option" << endl;
+              cerr << "Incorrect syntax for output option" << endl;
               usage();
             }
           if (strlen(argv[arg]) == 14 && !strncmp(argv[arg] + 7, "dynamic", 7))
@@ -264,7 +264,7 @@ main(int argc, char **argv)
             output_mode = third;
           else
             {
-              cerr << "Incorrect syntax for ouput option" << endl;
+              cerr << "Incorrect syntax for output option" << endl;
               usage();
             }
         }

ModFile.cc

@@ -232,7 +232,7 @@ ModFile::checkPass(bool nostrict)
 
       if (mod_file_struct.dsge_prior_weight_initialized && mod_file_struct.dsge_prior_weight_in_estimated_params)
         {
-          cerr << "ERROR: dsge_prior_weight cannot be both initalized and estimated." << endl;
+          cerr << "ERROR: dsge_prior_weight cannot be both initialized and estimated." << endl;
           exit(EXIT_FAILURE);
         }
     }

StaticModel.cc

@@ -341,7 +341,7 @@ StaticModel::writeModelEquationsOrdered_M(const string &static_basename) const
                 }
               else
                 {
-                  cerr << "Type missmatch for equation " << equation_ID+1  << "\n";
+                  cerr << "Type mismatch for equation " << equation_ID+1  << "\n";
                   exit(EXIT_FAILURE);
                 }
               output << ";\n";