ad3d00f0da38452c479c604aaa4ddf34c8f1521f preprocessor: fix bug when printing model variables containing underscores in latex file. closes #1059

================================ DYNARE MAKE CHECK MATLAB RESULTS ================================ | TOTAL: 555 | PASS: 540 | FAIL: 10 | XFAIL: 5 | XPASS: 0 | LIST OF FAILED TESTS: | * estimation/MH_recover/fs2000_recover.mod | * identification/rbc_ident/rbc_ident_varexo_only.mod | * kalman/likelihood_from_dynare/fs2000_corr_ME.mod | * kalman/likelihood_from_dynare/fs2000_corr_ME_missing.mod | * kalman/likelihood_from_dynare/fs2000_uncorr_ME.mod | * kalman/likelihood_from_dynare/fs2000_uncorr_ME_missing.mod | * ep/rbc2.mod | * ../matlab/modules/dseries/src/@dseries/subsasgn.m#21 | * ../matlab/modules/dseries/src/@dseries/subsasgn.m#22 | * ../matlab/prior_draw.m#1 | | LIST OF 10 SLOWEST TESTS: | optimizers/fs2000_6.mod - 2387.680000 | gsa/ls2003.mod - 916.030000 | walsh.mod - 892.550000 | optimizers/fs2000_2.mod - 810.930000 | estimation/TaRB/fs2000_tarb.mod - 319.340000 | optimizers/fs2000_10.mod - 275.660000 | ms-sbvar/test_ms_variances_repeated_runs.mod - 208.310000 | conditional_forecasts/2/fs2000_est.mod - 204.320000 | optimal_policy/osr_example_obj_corr_non_stat_vars.mod - 176.630000 | gsa/ls2003a.mod - 153.320000

================================ DYNARE MAKE CHECK OCTAVE RESULTS ================================ | TOTAL: 549 | PASS: 529 | FAIL: 15 | XFAIL: 5 | XPASS: 0 | LIST OF FAILED TESTS: | * estimation/MH_recover/fs2000_recover.mod | * gsa/cod_ML_morris/cod_ML_morris.mod | * fs2000/fs2000a.mod | * fs2000/fs2000_dseries_b.mod | * kalman/likelihood_from_dynare/fs2000_corr_ME.mod | * kalman/likelihood_from_dynare/fs2000_corr_ME_missing.mod | * kalman/likelihood_from_dynare/fs2000_uncorr_ME.mod | * kalman/likelihood_from_dynare/fs2000_uncorr_ME_missing.mod | * ep/rbc2.mod | * optimizers/fs2000_7.mod | * ../matlab/lyapunov_symm.m#1 | * ../matlab/modules/dseries/src/@dseries/dseries.m#5 | * ../matlab/modules/dseries/src/@dseries/subsasgn.m#21 | * ../matlab/modules/dseries/src/@dseries/subsasgn.m#22 | * ../matlab/prior_draw.m#1 | | LIST OF 10 SLOWEST TESTS: | optimizers/fs2000_6.mod - 48287.037751 | gsa/ls2003.mod - 17462.043309 | optimizers/fs2000_2.mod - 16804.018185 | optimizers/fs2000_10.mod - 5517.404816 | estimation/TaRB/fs2000_tarb.mod - 5490.983166 | conditional_forecasts/2/fs2000_est.mod - 3839.111930 | ms-sbvar/test_ms_variances_repeated_runs.mod - 3327.375948 | TeX/fs2000_corr_ME.mod - 3046.410390 | measurement_errors/fs2000_corr_me_ml_mcmc/fs2000_corr_ME.mod - 2523.745724 | fs2000/fs2000.mod - 2512.309009

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