Merge pull request #1 from GoogleCloudPlatform/travis

Add Travis configuration.

.travis.yml

@@ -0,0 +1,23 @@
+# Copyright 2016 Google Inc. All Rights Reserved.
+#
+# Licensed 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.
+language: java
+jdk:
+  - oraclejdk7
+  - oraclejdk8
+script: mvn verify
+after_success:
+  - mvn clean cobertura:cobertura coveralls:report
+branches:
+  only:
+  - master