Fixing two bugs in the referenced issue.

Author: jeking04

src/prpy/planning/vectorfield.py

@@ -179,7 +179,7 @@ def TerminateMove():
             return Status.CONTINUE
 
         return self.FollowVectorField(robot, vf_straightline, TerminateMove,
-                                      timelimit)
+                                      timelimit, **kw_args)
 
     @PlanningMethod
     def FollowVectorField(self, robot, fn_vectorfield, fn_terminate,
@@ -244,7 +244,7 @@ def FollowVectorField(self, robot, fn_vectorfield, fn_terminate,
 
                         status = fn_terminate()
                         if status == Status.CACHE_AND_CONTINUE:
-                            cached_traj = prpy.util.CopyTrajectory(qtraj)
+                            cached_traj = util.CopyTrajectory(qtraj)
                         if status == Status.TERMINATE:
                             break