chore(package): update http-server to version 0.12.2

Closes #135

Author: greenkeeper[bot]

package.json

@@ -39,7 +39,7 @@
     "guide4you": "3.3.*",
     "guide4you-builder": "3.5.1",
     "guide4you-proxy": "github:KlausBenndorf/guide4you-proxy#v1.1.0",
-    "http-server": "0.11.1",
+    "http-server": "0.12.2",
     "jquery": "3.3.1",
     "mocha": "5.2.0",
     "ol": "5.2.0",