NancyFx/Nancy — pull request #1153 by Invizory (2013-07-15 10:36:49+00:00)
Title: Fix name of default JSON response charset

According to [RFC-3629](http://tools.ietf.org/html/rfc3629#section-8), the correct `charset` parameter value of the UTF-8 character set in `Content-Type` header field is `utf-8`, not `utf8`.