> DESC : a asynchronous network I/O library in golang
LICENCE : Apache License 2.0
EMAIL : alexstocks@foxmail.com
## develop history ##
---
- 2016/08/25
> move close done to once clause in server.go:(Server)stop
>
> rename reqQ to rQ which means read queue and its relative params
>
> rename rspQ to wQ which means write queue and its relative params
>
> version: 0.2.06
- 2016/08/24
> delete session.go:Session:wg(atomic.WaitGroup). Add session.go:Session:grNum instead to prevent from (Session)Close() block on session.go:Session:wg.Wait()
>
> add once for session.go:Session:done(chan struct{})
>
> version: 0.2.05
- 2016/08/23
> do not consider empty package as a error in (Session)handlePackage
>
> version: 0.2.04
- 2016/08/22
> rename (Session)OnIdle to (Session)OnCron
>
> rewrite server.go: add Server{done, wg}
>
> add utils.go
>
> version: 0.2.03
- 2016/08/21
> add name for Session
>
> add OnError for Codec
- 2016/08/18
> delete last clause of handleRead
>
> add reqQ handle case in last clause of handleLoop
