Last files to need ASF License headers. (#54)

* Last files to need ASF License headers.

* Add ASF license header to .gradle files.
diff --git a/ansible/environments/local/group_vars/all b/ansible/environments/local/group_vars/all
index ce84e87..306a849 100755
--- a/ansible/environments/local/group_vars/all
+++ b/ansible/environments/local/group_vars/all
@@ -1,3 +1,6 @@
+# Licensed to the Apache Software Foundation (ASF) under one or more contributor
+# license agreements; and to You under the Apache License, Version 2.0.
+
 whisk_version_name: local
 openwhisk_tmp_dir: "{{ lookup('env', 'OPENWHISK_TMP_DIR')|default('/tmp', true) }}"
 config_root_dir: "{{ openwhisk_tmp_dir }}/wskconf"
diff --git a/build.gradle b/build.gradle
index 300a1ce..4ebd4b8 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,3 +1,20 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://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.
+ */
+
 buildscript {
     repositories {
         jcenter()
diff --git a/gradle/docker.gradle b/gradle/docker.gradle
index f716c7b..6ad6850 100644
--- a/gradle/docker.gradle
+++ b/gradle/docker.gradle
@@ -1,3 +1,20 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://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.
+ */
+
 import groovy.time.*
 
 /**
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index bf3de21..15c07a0 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,3 +1,6 @@
+# Licensed to the Apache Software Foundation (ASF) under one or more contributor
+# license agreements; and to You under the Apache License, Version 2.0.
+
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-bin.zip
diff --git a/java8/build.gradle b/java8/build.gradle
index 57276bc..3a4ae0f 100644
--- a/java8/build.gradle
+++ b/java8/build.gradle
@@ -1,2 +1,19 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://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.
+ */
+
 ext.dockerImageName = 'java8action'
 apply from: '../gradle/docker.gradle'
diff --git a/java8/proxy/build.gradle b/java8/proxy/build.gradle
index 922908b..0df3105 100644
--- a/java8/proxy/build.gradle
+++ b/java8/proxy/build.gradle
@@ -1,3 +1,20 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://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.
+ */
+
 apply plugin: 'java'
 
 repositories {
diff --git a/java8/proxy/gradle/wrapper/gradle-wrapper.properties b/java8/proxy/gradle/wrapper/gradle-wrapper.properties
index bf3de21..15c07a0 100644
--- a/java8/proxy/gradle/wrapper/gradle-wrapper.properties
+++ b/java8/proxy/gradle/wrapper/gradle-wrapper.properties
@@ -1,3 +1,6 @@
+# Licensed to the Apache Software Foundation (ASF) under one or more contributor
+# license agreements; and to You under the Apache License, Version 2.0.
+
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-bin.zip
diff --git a/settings.gradle b/settings.gradle
index f7cf2f9..09c66ab 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -1,3 +1,20 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://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.
+ */
+
 include 'tests'
 
 include 'java8'
diff --git a/tests/build.gradle b/tests/build.gradle
index 3b60d6c..1ae5a4b 100644
--- a/tests/build.gradle
+++ b/tests/build.gradle
@@ -1,3 +1,20 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://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.
+ */
+
 apply plugin: 'scala'
 apply plugin: 'eclipse'
 compileTestScala.options.encoding = 'UTF-8'