Trajectory ID changed to boost uuid.  Tests added to verify base trajectory point behavior.  Planning graph not yet updated (disabled for now)
Completed conversion of int ID to boost::uuid ID for cartesian and joint trajectory points.
Merge pull request #1 from psturgeon/shaun-edwards-trajectory-pt-uuid

Transition to boost:uuid
Merge pull request #22 from shaun-edwards/trajectory-pt-uuid

Trajectory ID changed to boost uuid