Limit output in Travis

Summary: Logs often get cut off because there's too much noise.

Reviewed By: danielbuechele

Differential Revision: D9602056

fbshipit-source-id: 0b725f169a40c153835f63342e38f5d15556ac98

.travis.yml

@@ -89,7 +89,7 @@ matrix:
         - export PATH=${PATH}:${ANDROID_NDK_HOME}
         - cd ../
       script:
-        - ./gradlew :sample:build
+        - ./gradlew :sample:build -q
       deploy:
         - provider: script
           script: "scripts/publish-android-snapshot.sh"