Fix bug in address valid_hostname()
Fix bug in address valid_hostname()

deeper-think/sniproxy,dlundquist/sniproxy,dlundquist/sniproxy,0xa/sniproxy,txt3rob/sniproxy,balyanrobin/sniproxy,txt3rob/sniproxy,0xa/sniproxy,deeper-think/sniproxy,0xa/sniproxy,dlundquist/sniproxy,balyanrobin/sniproxy,dlundquist/sniproxy,balyanrobin/sniproxy,txt3rob/sniproxy,0xa/sniproxy,deeper-think/sniproxy,balyanrobin/sniproxy