Fix for CTD in DCS 2.1.

Destroyed scenery object cannot be inspected with all the methods.
SceneryObject:getTypeName() goes into CTD with the scenery has been
destroyed.
The problem was in the event handler (Event.lua).
This is fixed by checking if the SceneryObject exists before getting the
type name.
If it does not exist, the type name is filled with "SCENERY".

Moose Development/Moose/Core/Event.lua

@@ -810,7 +810,7 @@ function EVENT:onEvent( Event )
         Event.IniUnitName = Event.IniDCSUnitName
         Event.IniUnit = SCENERY:Register( Event.IniDCSUnitName, Event.initiator )
         Event.IniCategory = Event.IniDCSUnit:getDesc().category
-        Event.IniTypeName = Event.IniDCSUnit:getTypeName()
+        Event.IniTypeName = Event.initiator:isExist() and Event.IniDCSUnit:getTypeName() or "SCENERY" -- TODO: Bug fix for 2.1!
       end
     end