revised locking in Capabilities/CapsHandlers.cs
revised locking in Data/Null/NullRegionData.cs
this module gets used when regions are loaded from file
Merge remote-tracking branch 'arribasim-dev/master'

* arribasim-dev/master:
  revised locking in Data/Null/NullRegionData.cs this module gets used when regions are loaded from file
  revised locking in Capabilities/CapsHandlers.cs