Fixed field-level validation bug (final-form#32)

* Fixed field-level validation bug

* Improved travis config

Author: erikras

.travis.yml

@@ -11,8 +11,6 @@ script:
   - npm start validate
 after_success:
   - npx codecov
-  - npm install --global semantic-release
-  # - semantic-release pre && npm publish && semantic-release post
 branches:
   only:
     - master