Update to modification in hpp-core,

  - make ProblemSolver::initializeProblem virtual,
  - use shared pointers for ConfigurationShooter.

include/hpp/manipulation/problem-solver.hh

@@ -139,7 +139,7 @@ namespace hpp {
         }
 
       protected:
-        void initializeProblem (ProblemPtr_t problem);
+        virtual void initializeProblem (ProblemPtr_t problem);
 
       private:
         DevicePtr_t robot_;

src/manipulation-planner.cc

@@ -208,7 +208,7 @@ namespace hpp {
     ManipulationPlanner::ManipulationPlanner (const Problem& problem,
         const core::RoadmapPtr_t& roadmap) :
       core::PathPlanner (problem, roadmap),
-      shooter_ (new core::BasicConfigurationShooter (problem.robot ())),
+      shooter_ (problem.configurationShooter()),
       problem_ (problem), qProj_ (problem.robot ()->configSize ())
     {}