We should simplify the shiv and potentially relocate it to it's own module.
Also, I think that there is no point in trying to do IE browser detection INSIDE the shiv. People should just be instructed to use conditional comments.
Looking for some confirmation before merging this. @ajoslin @petebacondarwin @dandoyon @pkozlowski-opensource do you have any thoughts on if this should be merged?
I felt the instructions for proper use were more than adequate in terms of version checking, and it's not destructive otherwise, and simplicity would make it easier for people to digest our logic.
fix(ieshiv): Removed browser version check and closes #392