aeb1542b4875faff564c0430fceee7530a443fd1 preprocessor: add VerbatimStatement class. Closes #953

================================ DYNARE MAKE CHECK MATLAB RESULTS ================================ | TOTAL: 529 | PASS: 523 | FAIL: 3 | XFAIL: 3 | XPASS: 0 | LIST OF FAILED TESTS: | * estimation/fs2000_initialize_from_calib.mod | * estimation/MH_recover/fs2000_recover.mod | * identification/rbc_ident/rbc_ident_varexo_only.mod

================================ DYNARE MAKE CHECK OCTAVE RESULTS ================================ | TOTAL: 523 | PASS: 512 | FAIL: 8 | XFAIL: 3 | XPASS: 0 | LIST OF FAILED TESTS: | * estimation/fs2000_initialize_from_calib.mod | * estimation/MH_recover/fs2000_recover.mod | * gsa/cod_ML_morris/cod_ML_morris.mod | * ms-sbvar/test_exclusions_nc.mod | * kalman_filter_smoother/algo4.mod | * optimizers/fs2000_7.mod | * ../matlab/lyapunov_symm.m#1 | * ../matlab/modules/dseries/src/@dseries/dseries.m#5

A full log can be found at http://www.dynare.org/testsuite/master