Update connector.js
Update connector.js

allow user to add self defined error code
inetufo/pomelo_fix,samlin08/pomelo,hello2009chen/pomelo,kkkkyue/pomelo,rain1017/pomelo,leopoldfreeman/pomelo,silverera/pomelo_fix,onelei/pomelo,lntitbk/pomelo,bobcui/pomelo,lntitbk/pomelo,wangchuan3533/pomelo,baongoccarrot/pomelo,skyblue/pomelo,cosmosbox/pomelo,blueseason/pomelo,oceanjack/pomelo,microlv/pomelo,bobcui/pomelo,MetSystem/pomelo,beni55/pomelo,leopoldfreeman/pomelo,zxc122333/pomelo,Suninus/pomelo,leopoldfreeman/pomelo,baegjins/pomelo,WeBest/pomelo,chenhaooo/pomelo,sumrac69/pomelo,cosmosbox/pomelo,lntitbk/pomelo,onelei/pomelo,zhukaixy/pomelo,saruno/pomelo,silverera/pomelo_fix,onelei/pomelo,MQQiang/pomelo,silverera/pomelo_fix,LosingLin/pomelo,jqk6/pomelo,hello2009chen/pomelo,tomdev2008/pomelo,ljhsai/pomelo,jokerCode/pomelo,rain1017/pomelo,NetEase/pomelo,cynron/pomelo,chianquan/pomelo,fabiobc/pomelo,MQQiang/pomelo,skyblue/pomelo,chenhaooo/pomelo,bobcui/pomelo,PortNumber53/pomelo,oceanjack/pomelo,jokerCode/pomelo,youprofit/pomelo,baidao/pomelo,rain1017/pomelo,youprofit/pomelo,hzruandd/pomelo,hello2009chen/pomelo,baidao/pomelo,baegjins/pomelo,microlv/pomelo,IssicLzx/pomelo,chianquan/pomelo,tomdev2008/pomelo,jqk6/pomelo,microlv/pomelo,kkkkyue/pomelo,samlin08/pomelo,cynron/pomelo,sumrac69/pomelo,zhukaixy/pomelo,MQQiang/pomelo,fabiobc/pomelo,zhukaixy/pomelo,baegjins/pomelo,PortNumber53/pomelo,sumrac69/pomelo,beni55/pomelo,wangchuan3533/pomelo,cosmosbox/pomelo,hzruandd/pomelo,baidao/pomelo,youprofit/pomelo,WeBest/pomelo,zxc122333/pomelo,MetSystem/pomelo,PortNumber53/pomelo,laiqiqi886/pomelo,saruno/pomelo,cynron/pomelo,NetEase/pomelo,beni55/pomelo,IssicLzx/pomelo,zxc122333/pomelo,laiqiqi886/pomelo,saruno/pomelo,baongoccarrot/pomelo,ljhsai/pomelo,samlin08/pomelo,wangchuan3533/pomelo,oceanjack/pomelo,blueseason/pomelo,chenhaooo/pomelo,NetEase/pomelo,WeBest/pomelo,laiqiqi886/pomelo,blueseason/pomelo,ljhsai/pomelo,LosingLin/pomelo,jokerCode/pomelo,skyblue/pomelo,chianquan/pomelo,jqk6/pomelo,IssicLzx/pomelo,kkkkyue/pomelo,hzruandd/pomelo,inetufo/pomelo_fix,baongoccarrot/pomelo,Suninus/pomelo,fabiobc/pomelo,MetSystem/pomelo,Suninus/pomelo,LosingLin/pomelo,tomdev2008/pomelo,inetufo/pomelo_fix