Respect :throw-exceptions flag in case of exceeding max redirects limit

[relonger]

in case of 4xx 5xx errors you don't throw any exceptions and just return response as is

if $!throw-exceptions {
        given $response.code {
            when /^4/ {
                X::HTTP::Response.new(:rc($response.status-line), :response($response)).throw;
            }
            when /^5/ {
                X::HTTP::Server.new(:rc($response.status-line), :response($response)).throw;
            }
        }
    }

but in case of to many 302 redirects you don't check this flag

if $.max-redirects < $.redirects-in-a-row {
            X::HTTP::Response.new(:rc('Max redirects exceeded'), :response($response)).throw;
        }

in my case I don't want to do any redirect at all, just get the first result. But setting max-redirects to zero doesn't help.