Merge pull request #221 from textpattern/greenkeeper/webpack-4.8.2

chore(package): update webpack to version 4.8.2

Author: philwareham

package.json

@@ -39,7 +39,7 @@
     "stylelint-order": "0.8.1",
     "stylelint-scss": "3.1.0",
     "stylelint-webpack-plugin": "0.10.4",
-    "webpack": "4.7.0",
+    "webpack": "4.8.2",
     "webpack-cli": "2.1.3"
   },
   "browserslist": [