Merge remote-tracking branch 'upstream/3.6.0/jsonschema' into 3.6.0/jsonschema

Author: TedZen

.travis.yml

@@ -3,6 +3,7 @@ before_install:
   - chmod +x library/gradlew
   - chmod +x library/gradle/wrapper/gradle-wrapper.jar
 script:
+  - ./gradlew check
   - cd library && ./gradlew build test
 deploy:
 - provider: releases