BulletSim: add function to push avatar up when hitting stairs.

It looks like BulletSim and ODE rely on penetration correction to cause
the avatar to move up and thus allowing walking up stairs. Object
penetration was minimized for walking and flying (so one doesn't go
through walls) and this stopped stairs from working. This commit
introduces avatar movement code to check for collisions at the
feet while walking and attempts to raise the avatar for the steps.
Not yet perfect but movement is better.

1 files changed, 1 insertions, 1 deletions

diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs b/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs
index 94b63e5..400d5d6 100644
--- a/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs
@@ -562,7 +562,7 @@ public sealed class BSPrim : BSPhysObject
         }
         return;
     }
-    public OMV.Vector3 RawVelocity
+    public override OMV.Vector3 RawVelocity
     {
         get { return _velocity; }
         set { _velocity = value; }