Add step-by-step planning to client problem
Add a prefix when loading an obstacle.
Add an interface method to remove obstacles.
Expose getJointInnerObject and getJointOuterObjects in python class Robot.
Add method generateValidConfig to interface problem.
Merge remote-tracking branch 'florent/master' into topic_solve_step_by_step
Fix bug in problem::generateValidConfig
Add resetRoamap to interface problem