Merge pull request #320 from magazino/fix_wrong_initial_global_planner_cost

fix wrong (initial) global planner path cost

Author: ChristofDubs

mbf_abstract_nav/src/abstract_planner_execution.cpp

@@ -251,7 +251,7 @@ void AbstractPlannerExecution::run()
     {
       // call the planner
       std::vector<geometry_msgs::PoseStamped> plan;
-      double cost;
+      double cost = 0.0;
 
       // lock goal start mutex
       goal_start_mtx_.lock();