call (Merb::Rack::Application)

    # File lib/merb-core/rack/application.rb, line 15
          def call(env)
            begin
              rack_response = ::Merb::Dispatcher.handle(Merb::Request.new(env))
            rescue Object => e
              return [500, {Merb::Const::CONTENT_TYPE => Merb::Const::TEXT_SLASH_HTML}, e.message + Merb::Const::BREAK_TAG + e.backtrace.join(Merb::Const::BREAK_TAG)]
            end
            Merb.logger.info Merb::Const::DOUBLE_NEWLINE
            Merb.logger.flush

            # unless controller.headers[Merb::Const::DATE]
            #   require "time"
            #   controller.headers[Merb::Const::DATE] = Time.now.rfc2822.to_s
            # end
            rack_response
          end