Merge pull request #105 from textpattern/greenkeeper/node-sass-4.9.0

Update node-sass to the latest version 🚀

Author: philwareham

package.json

@@ -22,7 +22,7 @@
     "cross-env": "5.1.4",
     "css-loader": "0.28.11",
     "mini-css-extract-plugin": "0.4.0",
-    "node-sass": "4.8.3",
+    "node-sass": "4.9.0",
     "postcss-loader": "2.1.4",
     "sass-loader": "7.0.1",
     "stylelint": "9.2.0",