chore(package): update local-web-server to version 2.2.4 (#1377)

Author: greenkeeper[bot]

package.json

@@ -39,7 +39,7 @@
     "karma-jasmine": "1.1.0",
     "karma-mocha-reporter": "^2.2.0",
     "karma-sauce-launcher": "1.2.0",
-    "local-web-server": "2.2.3",
+    "local-web-server": "2.2.4",
     "markdown": "^0.5.0",
     "pdfjs-dist": "1.8.587",
     "rollup": "0.46.0",