add node modules to repo

node_modules/electron-packager/.travis.yml

@@ -0,0 +1,35 @@
+sudo: required
+os:
+- linux
+- osx
+dist: trusty
+osx_image: xcode8
+language: node_js
+node_js:
+- '4'
+- '6'
+- '8'
+- '9'
+matrix:
+  allow_failures:
+  - node_js: '9'
+cache:
+- apt: true
+- directories:
+  - "node_modules"
+  - "$HOME/.electron"
+before_install: test/ci/before_install.sh
+install:
+- npm install
+- npm update
+before_script: test/ci/_before_script.js
+after_success: npm run codecov
+branches:
+  only:
+  - master
+  - /^v\d+\.\d+\.\d+/
+env:
+  global:
+    # prevent wine popup dialogs about installing additional packages
+    - WINEDLLOVERRIDES="mscoree,mshtml="
+    - WINEDEBUG="-all"