Updating Method Label tests

src/methods/adaboost/adaboost.cpp

src/methods/adaboost/adaboost_test.pl

...sian_linear_regression/bayesian_linear_regression_test.pl

src/methods/decision_tree/decision_tree.cpp

src/methods/decision_tree/decision_tree_test.pl

src/methods/hoeffding_tree/hoeffding_tree_test.pl

src/methods/lars/lars_test.pl

src/methods/linear_SVM/linear_SVM_test.pl

src/methods/linear_regression/linear_regression_test.pl

src/methods/lmnn/lmnn_test.pl

src/methods/logistic_regression/logistic_regression_test.pl

...ods/naive_bayes_classifier/naive_bayes_classifier_test.pl

src/methods/nca/nca_test.pl

src/methods/perceptron/perceptron_test.pl

src/methods/random_forest/random_forest_test.pl

src/methods/softmax_regression/softmax_regression.cpp

src/methods/softmax_regression/softmax_regression_test.pl