Add Travis CI

Author: marcohu

.travis.yml

@@ -0,0 +1,16 @@
+dist: xenial
+
+addons:
+  apt:
+    sources:
+    - sourceline: 'deb [arch=amd64] https://storage.googleapis.com/bazel-apt stable jdk1.8'
+      key_url: 'https://bazel.build/bazel-release.pub.gpg'
+    packages:
+    - bazel
+
+script:
+  - bazel version
+  - bazel test --jobs 2 --test_output=errors --test_verbose_timeout_warnings --test_timeout=300,300,900,3000 //...
+  - bazel shutdown
+
+language: java