Reformatted Changes file as per CPAN::Changes::Spec

Hi Nagano-san,

I've reformatted your Changes file according to the spec in CPAN::Changes::Spec - this was mainly fixing up the date format for some of your older releases.

Following this format means that various tools can more easily process your distribution automatically.

You can find out more about this at Brian Cassidy's [CPAN::Changes Kwalitee Service](http://changes.cpanhq.org), which is where I saw your module listed :-)

Cheers,
Neil

PS I'm doing this because I'm on a quest to help improve CPAN:
        http://questhub.io/realm/perl/quest/51f0337718ba7d3959000086
   You can check the status of your Changes files for all dists:
        http://changes.cpanhq.org/author/KAZEBURO
   If you choose you update the others, you can log them in comments on the quest :-)