Adds raycasting ability using bullet for RigidBodyManipulator.
Merge branch 'collision-dynamics-integration' of github.com:avalenzu/drake into collision-dynamics-integration
Adds a test for raycasting.
Merge branch 'collision-dynamics-integration' of github.com:avalenzu/drake into collision-dynamics-integration
updating cmake pointer
Merge branch 'master' of github.com:andybarry/drake into collision-dynamics-integration
updating cmake pointer
Merges changes for raycasting into my master