sakaiproject/nakamura — pull request #687 by zathomas (2012-03-22 04:46:22+00:00)
Title: Kern 2687 keeps the migrator from blowing up if a non-existent widget is referenced

Berkeley has done some customization to their left nav which means there will be references to widgets in a user's privspace which don't actually exist in the document.

`JSONObject` throws an exception when you try to retrieve a key which doesn't exist.

This patch causes the migrator to pass that page ref over and keep going.