From Cedric Pinson, "updated osgAnimation with the trunk here the update:

examples/osganimationviewer/AnimtkViewer.cpp:
- add option to display bone (--drawbone)
- dont crash if the file does not contains a AnimationManagerBase, display the content only

examples/osganimationviewer/AnimtkViewerGUI.cpp:
- adjust the path of image for the gui

include/osgAnimation/Interpolator:
- add warn message instead of old assert

include/osgAnimation/Bone:
src/osgAnimation/Skeleton.cpp:
- change a method name to fit better with what it does. setMatrixInSkeletonSpace instead of setBoneInSkeletonSpace

include/osgAnimation/Skinning:
src/osgAnimation/RigGeometry.cpp:
- add patch from Fabien Lavignotte to compute normal correctly

include/osgAnimation/Sampler:
- adjust behviour without assert, return 0 instead of crashing
"

include/osgAnimation/Sampler

@@ -64,11 +64,15 @@ namespace osgAnimation
 
         float getStartTime() const 
         {
+            if (!_keyframes)
+                return 0.0f;
             return _keyframes->front().getTime();
         }
 
         float getEndTime() const 
         {
+            if (!_keyframes)
+                return 0.0f;
             return _keyframes->back().getTime();
         }