Only upload coverage on passing builds

Author: Deseao

.travis.yml

@@ -16,5 +16,5 @@ before_script:
 script:
   - gradle cobertura
 after_script:
-  - ./cc-test-reporter format-coverage -t cobertura build/reports/cobertura/coverage.xml
-  - ./cc-test-reporter upload-coverage --exit-code $TRAVIS_TEST_RESULT
+  - ./cc-test-reporter format-coverage -t cobertura build/reports/cobertura/coverage.xml # Convert build/reports/cobertura/coverage.xml into coverage/codeclimate.json
+  - if [[ "$TRAVIS_TEST_RESULT" == 0 ]]; then ./cc-test-reporter upload-coverage; fi #Upload coverage/codeclimate.json