tun2socks: possible bug fix. In the lwip error callback, signal the client_dead dead-variable so that ERR_ABRT is returned to  any chained callbacks (if that could happen in the first place).
tun2socks: possible bug fix. In the lwip error callback, signal the client_dead dead-variable so that ERR_ABRT is returned to 
any chained callbacks (if that could happen in the first place).


chrisballinger/badvpn,LazyZhu/badvpn,tempbottle/badvpn,Git-Host/badvpn,tempbottle/badvpn,linfengfeiye/badvpn,tempbottle/badvpn,chrisballinger/badvpn,LazyZhu/badvpn,Git-Host/badvpn,linfengfeiye/badvpn,binondord/badvpn,binondord/badvpn,chrisballinger/badvpn,chrisballinger/badvpn,LazyZhu/badvpn,PowerOlive/badvpn,Git-Host/badvpn,binondord/badvpn,LazyZhu/badvpn,LazyZhu/badvpn,tempbottle/badvpn,PowerOlive/badvpn,linfengfeiye/badvpn,PowerOlive/badvpn,Git-Host/badvpn,linfengfeiye/badvpn,tempbottle/badvpn,binondord/badvpn,linfengfeiye/badvpn,binondord/badvpn,PowerOlive/badvpn,Git-Host/badvpn,PowerOlive/badvpn