update tests.

tests/cpp_test/predict.conf

-data=../../examples/regression/regression.test
+data=../data/categorical.data
 
 input_model=LightGBM_model.txt
 

tests/cpp_test/train.conf

-data=../../examples/regression/regression.train
+data=../data/categorical.data
+
+app=binary
 
 num_trees=10
 

tests/python_package_test/test_basic.py

@@ -60,6 +60,3 @@ class TestBasic(unittest.TestCase):
         for preds in zip(pred_early_stopping, pred_from_matr):
             # scores likely to be different, but prediction should still be the same
             self.assertEqual(preds[0] > 0, preds[1] > 0)
-
-        # check pmml
-        subprocess.call(['python', os.path.join(os.path.dirname(os.path.realpath(__file__)), '../../pmml/pmml.py'), 'model.txt'])