As discussed. I ran the AR test suite against this version of ARel, and was pleasantly surprised to see no failures -- looks like any calls to #as are already being done with strings -- or we don't have test coverage on those calls -- hopefully the former. :)
Stop calling to_s on aliases, require them to be strings already.
Great! I'll merge it.
Merged pull request #48 from ernie/down_with_to_s.