Zoo model TF import test updates (#75)

* argLine fix, update compression_gru comment

* updated comment for xception

* undid but commented argLine change

* updated xlnet comment

* copyright headers

nd4j/nd4j-backends/nd4j-tests/pom.xml

@@ -193,6 +193,8 @@
                             <!--
                                 Maximum heap size was set to 8g, as a minimum required value for tests run.
                                 Depending on a build machine, default value is not always enough.
+
+                                For testing large zoo models, this may not be enough (so comment it out).
                             -->
                             <argLine>-Ddtype=float -Xmx8g</argLine>
                         </configuration>

nd4j/nd4j-backends/nd4j-tests/src/test/java/org/nd4j/imports/TFGraphs/TFGraphTestZooModels.java

@@ -56,13 +56,13 @@ public class TFGraphTestZooModels { //Note: Can't extend BaseNd4jTest here as we
 
     public static final String[] IGNORE_REGEXES = {
 
-            //2019/07/10 - Libnd4j assign error - https://github.com/eclipse/deeplearning4j/issues/8002
+            //2019/07/22 - Result value failure
             "xlnet_cased_L-24_H-1024_A-16",
 
-            //2019/07/03 - Out of Memory error
+            // 2019/07/22 - OOM, Passes with sufficient memory (16GB heap, 32GB off-heap tested)
             "compression_residual_gru",
 
-            //2019/07/03 - Out of Memory error
+            // 2019/07/22 - OOM, Passes with sufficient memory (16GB heap, 32GB off-heap tested)
             "deeplabv3_xception_ade20k_train",
 
             //2019/07/03 - o.n.i.g.t.TFGraphMapper - No TensorFlow descriptor found for tensor "sample_sequence/model/h0/attn/MatMul", op "BatchMatMulV2"

nd4j/nd4j-backends/nd4j-tests/src/test/java/org/nd4j/imports/listeners/ImportDebugListener.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright (c) 2015-2019 Skymind, Inc.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Apache License, Version 2.0 which is available at
+ * https://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
 package org.nd4j.imports.listeners;
 
 import lombok.NonNull;

nd4j/nd4j-backends/nd4j-tests/src/test/java/org/nd4j/imports/listeners/ImportModelDebugger.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright (c) 2015-2019 Skymind, Inc.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Apache License, Version 2.0 which is available at
+ * https://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
 package org.nd4j.imports.listeners;
 
 import org.apache.commons.io.FileUtils;