v0.0.3-fix
fixed bug about grpc connection confused,
add a sub server to sgrid.yml in production, then auto trace server log
server.SgridLogTraceServer:
server:
main: true
name: SgridLogTraceServer
host: 127.0.0.1
port: 15887
type: tcp
config:
db_master: root:123456@tcp(127.0.0.1:3306)/sgrid?charset=utf8&parseTime=true
db_slave: root:123456@tcp(127.0.0.1:3306)/sgrid?charset=utf8&parseTime=true