Changelog

[eugenius1]

I think we need a changelog for this repo. With over one thousand forks(!), it'd be a great way for people to find out about new changes and decide whether or not to pull these to their websites.
Probably a separate file, CHANGELOG.md, or wiki (although I've personally never used this).

[daattali]

That's a great idea, I'll add a changelog file, thanks!