Fixed bug in Server#use() preventing Servers without routes
Fixed bug in Server#use() preventing Servers without routes

behind2/connect,qitianchan/connect,gtomitsuka/connect,dkfiresky/connect,tanveer12332/connect,austincitylimits/connect,davehorton/drachtio,lian774739140/connect,redmantech/connect,RickyDan/connect,mi2oon/connect,liuwei9413/connect,khalerc/connect,brianloveswords/connect,senchalabs/connect,llwanghong/connect,mi2oon/connect,chinazhaghai/connect,RoseTHERESA/connect,keenwon/connect,redmantech/connect,redmantech/connect,khirayama/connect,wghust/connect