Admin UI for net folders and net folder servers must use database instead of search index

With Filr 1.0, the Admin UI queries the search indexfor information about membership and existence of Net Folders and Net Folder Servers.
For reliability it is better that this is changed that it queries the MySQL database for this information instead.
This way it can continue to work correctly regardless whether the search index is corrpt or compromised.

This has been reported to engineering, and will be part of a forthcomming Filr update.