* added the capability to remove a cloud when @removeShape@ is called, to preserve API backward compatibility (a @PolygonMesh@ is not treated as a @CloudActor@ inside @PCLVisualizer@)
* added the capability to remove a cloud when @removeShape@ is called, to preserve API backward compatibility (a @PolygonMesh@ is not treated as a @CloudActor@ inside @PCLVisualizer@)



git-svn-id: 1af002208e930b4d920e7c2b948d1e98a012c795@4349 a9d63959-f2ad-4865-b262-bf0e56cfafb6

psoetens/pcl-svn,psoetens/pcl-svn,psoetens/pcl-svn,psoetens/pcl-svn,psoetens/pcl-svn