chore(package): update xmldom to version 0.3.0

Closes #581

Author: greenkeeper[bot]

package.json

@@ -45,7 +45,7 @@
     "webpack": "^3.8.1",
     "webpack-shell-plugin": "^0.5.0",
     "xhr-mock": "^1.9.1",
-    "xmldom": "^0.1.27",
+    "xmldom": "^0.3.0",
     "yargs": "^8.0.2"
   },
   "repository": "http://github.com/GrimoireGL/GrimoireJS",