Add integration test using Cockpit test API

Closes #16

package.json

@@ -14,6 +14,7 @@
     "babel-loader": "^7.0.0",
     "babel-plugin-transform-react-jsx": "^6.24.1",
     "babel-preset-env": "^1.5.2",
+    "chrome-remote-interface": "^0.25.5",
     "compression-webpack-plugin": "~1.0.0",
     "copy-webpack-plugin": "~3.0.1",
     "eslint": "^3.0.0",
@@ -21,6 +22,7 @@
     "eslint-plugin-react": "~6.9.0",
     "jshint": "~2.9.1",
     "jshint-loader": "~0.8.3",
+    "sizzle": "^2.3.3",
     "webpack": "^2.6.1"
   },
   "dependencies": {