add codecov.io

Author: make-github-pseudonymous-again

.travis.yml

@@ -10,5 +10,6 @@ script:
   - npm run cover
 
 after_success:
+  - bash <(curl -s https://codecov.io/bash) || true
   - ./node_modules/.bin/coveralls                 < coverage/lcov.info || true
   - ./node_modules/.bin/codeclimate-test-reporter < coverage/lcov.info || true