Better error handling of SQL errors.
Better error handling of SQL errors.

Create the table 'tiles' only if it doesn't exist.
If there's an error with the cache lookup it will force a network reload.

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