Use Geo::IP as fallback

[jelu]

Based on the Debian package patches Geo::IP could be used as a fallback if IP::Country does not exist.

--- a/presenter/perllib/DSC/grapher/plot.pm
+++ b/presenter/perllib/DSC/grapher/plot.pm
@@ -249,14 +249,12 @@
     names  => [ qw(Unknown IANA LACNIC APNIC RIPE ARIN) ],
     colors => [ qw(black red purple yellow blue brightgreen) ],
     label_func => sub {
-   use IP::Country;
-   my $l = new IP::Country::Fast;
-   $l->inet_atocc(shift) || '??';
+   use Geo::IP;
+   my $l = Geo::IP->new(GEOIP_MEMORY_CACHE|GEOIP_CHECK_CACHE);
+   $l->country_code_by_addr(shift) || '??';
     },
     color_func => sub {
-   use IP::Authority;
-   my $l = new IP::Authority;
-   $l->inet_atoauth(shift) || '??';
+   "??";
     },
     data_reader => \&DSC::extractor::read_data2,
     data_summer => \&DSC::grapher::data_summer_0d,