The site I'm using, JSbin, sort of has Version Control built in. But you didn't use that...

Anyway, trying to copy the fixes like that from one version to another is probably more job then just redoing it from scratch. Less obviously, spellchecking new stuff added on top chaotically probably is more work than just doing it over as well. Hence, waiting until it's out of alpha before handling it. Once I want help with the spelling I'll probably post instructions on how to do it in a way that won't interfere with other stuff.