Ticket 47779 - Part of DNA shared configuration is deleted after server restart
Bug Description: After a configuration change, like updating dnaNextVal,
the shared config entries are always rebuilt, but they do
preserve some of the configuration attributes like dnaRemoteBindMethod.
Fix Description: Maintain a global linked list of all the shared config entries,
so when we go to rebuild the shared config entry we can restore
the dnaRemote attributes.
https://fedorahosted.org/389/ticket/47779
Reviewed by: nhosoi(Thanks!)