chore(npm): update jsdom

Author: azu

Diff for: package.json

@@ -44,7 +44,7 @@
     "gitbook-plugin-edit-link": "^1.4.1",
     "gitbook-plugin-richquotes": "0.0.5",
     "gitbook-summary-to-path": "^1.0.1",
-    "jsdom": "^3.0.0",
+    "jsdom": "^6.3.0",
     "mocha": "^2.2.5",
     "npm-run-all": "^1.2.8",
     "power-assert": "^1.0.0",