Fix Bug 575902: ChamplainNetworkMapSource crashes when setting "proxy-uri"
Fix Bug 575902: ChamplainNetworkMapSource crashes when setting "proxy-uri"

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