One of the (Rails) apps I'm developing needs subdomains, and I don't think it's uncommon. We probably could find some way to develop without subdomains, but Rai

One of the (Rails) apps I'm developing needs subdomains, and I don't think it's uncommon. We probably could find some way to develop without subdomains, but Rails likes doing it this way. While aliasing localhost takes about 30 seconds (on Linux, at least), this trick will make it a little easier for new contributers to get involved.