trys to fix deployment script

Author: patrickfav

.travis.yml

@@ -52,7 +52,8 @@ deploy:
     script: ./gradlew install bintrayUpload --info
     skip_cleanup: true
     on:
-      tags
+      branch: master
+      tags: true
   - provider: releases
     api_key:
       secure: "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"