[fixed] Dizzy/knockdown works on players and NPCs but not creatures.  Mantis #4784

Change-Id: I61c6638b44960055c7a523f8d632a3bfb6a7f697
[fixed] field_of_pillars" on tatooine is no longer marked as a no build zone. Pillars are already scene objects and thus checked for collision.  Mantis #5122

Change-Id: Id4751001a9252a7ea6c3fd56c83eabb7a7666d4a
Merge changes Id4751001,I61c6638b into unstable

* changes:
  [fixed] field_of_pillars" on tatooine is no longer marked as a no build zone. Pillars are already scene objects and thus checked for collision.  Mantis #5122
  [fixed] Dizzy/knockdown works on players and NPCs but not creatures.  Mantis #4784