What's the recommended fix for the "Ajax doesn't work" bug?
http://dev.rubyonrails.org/ticket/6579 is marked 'wontfix', but the
page is confusing in that I can't make out what I should be doing to
make my code work. I gem updated rails and ajax didn't work till I
manually downgraded prototype to _rc0 - I was a bit wary of applying
any of the fixes listed under the bug, since the prototype developers
didn't accept them.