Makes the estate dialog fully functional. Implements all client facing functionality. Moves estate data from estate_settings.xml, which is used to provide defaults, to the region data store. Creates one estate for each region, and places the region in it. Converts all region bans to estate bans.
Patch 5 in the region settings series. Adds a migration to ensure corrupted
data is purged and re-read from defaults. Some changes. Still no full
functionality
* Migration should be automatic on sqlite and mysql
* Migration is not automatic on mssql, you will need to drop the invType column manually
* Migration should be fine, but as for any db change, I would recommend making sure you have backups before moving past this revision
