Create git tags for hotfix branches.

.travis.yml

@@ -57,6 +57,7 @@ deploy:
     - master
     - develop
     - smoke
+    - hotfix/*
     condition: $TRAVIS_EVENT_TYPE != cron
   skip_cleanup: true
   script: if npm info scratch-gui | grep -q $RELEASE_VERSION; then git tag $RELEASE_VERSION && git push https://${GH_TOKEN}@github.com/${TRAVIS_REPO_SLUG}.git $RELEASE_VERSION; fi