Build: Remove scope command and use yarn in travis.yml

Author: Markus Günther

.travis.yml

@@ -15,8 +15,7 @@ before_install:
   - export PATH="$HOME/.yarn/bin:$PATH"
   - yarn global add babel-cli
 after_success:
-  - npm config set scope friendsofreactjs
-  - npm run travis-deploy-once "npm run semantic-release"
+  - yarn travis-deploy-once "yarn semantic-release"
 branches:
   except:
     - /^v\d+\.\d+\.\d+$/