Fixed a few things pertaining to interfacing with the estate service. Specifically, StoreEstateSettings was not being used anywhere; instead EstatSetting.Save was being called, but that method is a trigger to the DB-layer code directly, which, besides being wrong, was making it impossible to replace the service with a remote connector.
Also added more packing/unpacking code.
Merge branch 'master' of ssh://opensimulator.org/var/git/opensim