Remove missing methods from Request::Parser. Add updated methods to RequestMixin.
Use the new java port inside http_parser.rb which is jRuby compatible.
Include support for #fragment, for good measure
directly access URI object every time for fragment/query_string/path
Merge pull request #63 from digitalextremist/http_parser.rb-0.6.0.betas

Updated to conform to http_parser.rb 0.6.0.beta.2 and greater.