changed locking in AsyncCommandManager.cs which developed a bad habit after the recent optimizations
reverted changes in SceneObjectPartInventory.cs . Those are too soon. Other changes required first.
cleaned up first batch of using lines
second batch of using cleanups
third and last batch of using cleanup
removed OpenSim/Tools folder. Those files will reside in arribasim-extras repositories
changed default build type to Release
removed Prebuild sources
These are not necessary for building the project
Merge remote-tracking branch 'arribasim-dev/master'

* arribasim-dev/master:
  removed Prebuild sources These are not necessary for building the project
  changed default build type to Release
  removed OpenSim/Tools folder. Those files will reside in arribasim-extras repositories
  third and last batch of using cleanup
  second batch of using cleanups
  cleaned up first batch of using lines
  reverted changes in SceneObjectPartInventory.cs . Those are too soon. Other changes required first.
  changed locking in AsyncCommandManager.cs which developed a bad habit after the recent optimizations

Conflicts:
	OpenSim/Region/ClientStack/Linden/Caps/BunchOfCaps/BunchOfCaps.cs
	prebuild.xml