Fix actor's reference counting in ChamplainTile
Fix actor's reference counting in ChamplainTile

GNOME/perl-Champlain,Distrotech/libchamplain,GNOME/perl-Gtk2-Champlain,PabloCastellano/libchamplain,Distrotech/libchamplain,PabloCastellano/libchamplain,GNOME/libchamplain,GNOME/perl-Gtk2-Champlain,PabloCastellano/libchamplain,PabloCastellano/libchamplain,Distrotech/libchamplain,potyl/champlain,StanciuMarius/Libchamplain-map-wrapping,StanciuMarius/Libchamplain-map-wrapping,StanciuMarius/Libchamplain-map-wrapping,Distrotech/libchamplain,potyl/champlain,potyl/champlain,StanciuMarius/Libchamplain-map-wrapping,GNOME/perl-Champlain,GNOME/libchamplain,PabloCastellano/libchamplain,StanciuMarius/Libchamplain-map-wrapping,Distrotech/libchamplain,potyl/champlain