So the latest version of `em-http-request` still has a beta version of `http_parser.rb`. I'm having problems trying to bundle with the versions you both mentioned. I also think you have to specify the beta version in order for it to bundle correctly. This might not be required to build a release, but it's preventing me from running the tests. You can see the issue in the Travis CI output. If you can provide a requirement that allows both versions and can bundle then I'll probably merge it.

Just as a note I would rather wait until it's no longer dependent on a beta version before upgrading, but get the reasoning behind wanting to update it.