fix(package): update sanitize.css to version 7.0.1

Closes #48

Author: greenkeeper[bot]

package.json

@@ -52,7 +52,7 @@
     "react-transform-catch-errors": "1.0.2",
     "react-transform-hmr": "1.0.4",
     "redbox-react": "1.3.2",
-    "sanitize.css": "4.1.0",
+    "sanitize.css": "7.0.1",
     "style-loader": "0.13.1",
     "webpack": "1.13.3",
     "webpack-dev-middleware": "1.8.4",