20121117  2012-11-17 09:02:20 Europe/London

Now supports CIDR ranges. This adds a dependency on the pure perl module
Net::CIDR::Lite

New add_range_with_value() method to store a string with each range, plus
get_matches() method to list the strings of any overlapping ranges.

20121112  2012-11-12 14:41:18 Europe/London

Initial release to CPAN. Working and mostly documented.