Dist enhancements

Hi,

I've seen that you recently uploaded your first Perl module. Welcome to **CPAN**!
Here I suggest a couple of minor enhancements:

 - change log file was edited to follow `CPAN::Changes::Spec` format. 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).

 - *.tar.gz and meta-files were deleted, because they are not needed to be kept in git repository. They could be generated at any time from your Makefile.PL or Build.PL (you normally need just one of those two, which one - it is up to you!)

Cheers,
Sergey

PS: I'm doing this because I'm on a quest to help to improve CPAN. Read more about the quest at [Questhub](http://questhub.io):

> http://questhub.io/realm/perl/quest/51f0337718ba7d3959000086