fix deploy

Author: zhaocchen

.travis.yml

@@ -35,12 +35,12 @@ node_js:
 branches:
   only:
     - master
-cache:
-  yarn: true
-install:
-  - yarn
+# cache:
+#   yarn: true
+# install:
+#   - yarn
 script:
   - git config --global user.name "${GH_NAME}"
   - git config --global user.email "${GH_EMAIL}"
   - echo "machine github.com login ${GH_NAME} password ${GH_TOKEN}" > ~/.netrc
-  - yarn && GIT_USER="${GH_NAME}" yarn deploy
+  - npm install && GIT_USER="${GH_NAME}" npm run deploy