Merge branch 'constrained-point-handle-rep-leaks' into release

Change-Id: Ie3387cc1728d553f85f6238ea3398627e3bc32a0

Widgets/vtkConstrainedPointHandleRepresentation.cxx

@@ -505,11 +505,11 @@ int vtkConstrainedPointHandleRepresentation::GetIntersectionPosition(double even
   
   if(path == 0)
    {
+   picker->Delete();
    return 0;
    }
   double pickPos[3];
   picker->GetPickPosition(pickPos);   
-  path->Register(this);
   if ( this->BoundingPlanes )
     {
     vtkPlane *p;
@@ -519,6 +519,7 @@ int vtkConstrainedPointHandleRepresentation::GetIntersectionPosition(double even
       double v = p->EvaluateFunction( pickPos );
       if ( v < tolerance )
         {
+        picker->Delete();
         return 0;
         }
       }