travis set up file

.travis.yml

@@ -8,6 +8,8 @@ before_deploy:
   - sudo apt-get update -q
   - sudo apt-get install -y wine1.7
   - cd app
+  - npm install electron -g
+  - npm install electron-prebuilt -g
   - npm install electron-builder -g
   - npm install
   - npm install --save-dev electron-rebuild