Add changelog?

[lencioni]

I'm trying to evaluate what I need to be on the lookout for when updating. It would be really helpful to have a changelog to reference.

[WebReflection]

I'm not planning to waste too much time on this project but I'll try to make comments more explicit, hope this works.
https://github.com/WebReflection/ie8/commits/master

What I can say is that rarely there are fixes to what's there already, sometimes there are little features added like pageX and pageY.