Added codecov.io as well.

Author: Hamlet Hakobyan

.travis.yml

@@ -17,3 +17,6 @@ before_install:
 
 script:
     - npm run test-ci && cat ./dist/coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js && rm -rf ./dist/coverage
+
+after_success:
+  - bash <(curl -s https://codecov.io/bash)