Merge branch 'master' into greenkeeper/css-loader-2.0.0

Author: Mukundan314

package-lock.json

@@ -26,9 +26,9 @@
     "chessground": "^7.3.2"
   },
   "devDependencies": {
-    "clean-webpack-plugin": "^0.1.19",
+    "clean-webpack-plugin": "^1.0.0",
     "css-loader": "^2.0.0",
-    "file-loader": "^2.0.0",
+    "file-loader": "^3.0.0",
     "html-webpack-inline-source-plugin": "0.0.10",
     "html-webpack-plugin": "^3.2.0",
     "standard": "^12.0.1",