Publish test results after failure in Travis CI.

.travis.yml

@@ -4,6 +4,8 @@ install: true
 script:
   - mvn -Dmaven.javadoc.skip=true -B -f reactor install
   - ./gradlew check
+after_failure:
+  - for f in `find . -name 'TEST*xml'`; do echo $f && cat "$f" && echo "."; done
 deploy:
   - provider: releases
     api_key: