fixed #20
fixed #20

gorm update:
https://github.com/jinzhu/gorm/pull/794/files

ijyd/shadowss,cappiewu/shadowsocks-go,orvice/shadowsocks-go,bjjyd/shadowsocks-go,ijyd/shadowss,bjjyd/shadowsocks-go,cappiewu/shadowsocks-go,orvice/shadowsocks-go