http4s/http4s — pull request #135 by bryce-anderson (2014-12-15 20:09:14+00:00)
Title: Make QueryParameterKey and QueryParameterValue AnyVals

Related to issue #129

This does a little performance tuning on the Query types. They are now descendants of ```AnyVal```, so they are type safe yet no-overhead wrappers of a ```String```.