Merge pull request #1576 from jjlin/global-domains

Sync global_domains.json

src/static/global_domains.json

@@ -772,7 +772,8 @@
       "stackoverflow.com",
       "serverfault.com",
       "mathoverflow.net",
-      "askubuntu.com"
+      "askubuntu.com",
+      "stackapps.com"
     ],
     "Excluded": false
   },