- Triangle selectors created from animated mesh scene nodes will update themselves as required to stay in sync with the node.
 - ISceneCollisionManager::getSceneNodeAndCollisionPointFromRay() allows selection by BB and triangle on a heirarchy of scene nodes.
Example 07 updated to show the usage of ISceneCollisionManager::getSceneNodeAndCollisionPointFromRay(), used on animated meshes.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@2177 dfc29bdd-3216-0410-991c-e03cc46cb475