2014/12/03 - Release 1.1
        * Add projector for paths.

2014/12/03 - Release 1.0.2
        * Fix bug when projection using WaypointEdge

2014/12/03 - Release 1.0.1
        * Fix bug in WaypointEdge

2014/11/18 - Release 1.0
        * Manipulation planner based on RRT.
        * A graph of constraint.
        * graph::Edge has 3 implementations: Edge, WaypointEdge, LevelSetEdge
        * WaypointEdge supports several waypoints.
        * LevelSetEdge solves the zero-probability problem.