Added preliminary IRegionModule interface.
Also have a work in progress way of Modules registering optional API methods (kind of like Apache optional functions). But there must be a cleaner/nicer way in c# of doing these than the current way.
Added three work in progress modules: ChatModule (simple handles in world chat, but by moving this to a module, we could support other types of chat modules, ie like a irc - opensim bridge module. ) , AvatarProfilesModule and XferModule.
Moved most of the code from Scene.ModifyTerrain() into the BasicTerrain library, as the start of trying to make that more modular.
Stopped Child agents showing up as part of the "show users" command.
Made a change to the Scene.EventManager OnRezScript event, it now includes the itemID as a param. This uuid is unique to each instance of a script, so can be used for tracking changes/editing, stopping and deleting a script.
* Moved OnPermissionError to EventManager - now triggers a standard blue alert.
* Terraforming now requires permission via the permissions manager. [Defaults to admin-only]
* Permissions manager is now substantiated in Scene
* Buttload of new permissions added.
* Estate manager operations now require various levels of permission to operate
* OGS1 now produces 'summary reports' for a commsManager of each scene it maintains connections for. Reduces grid network traffic for ping checks.
* Added new "permissions true" / "permissions false" console command to enable or disable permissions.
PLEASE NOTE: that with this revision some prim related features may be broke for a while. (things like linking prims and the parcel prim count.)
Also this revision may not work on mono, but that will be fixed soon.
