dotweb now released to Version 1.5

dotweb released to Version 1.5!!
https://github.com/devfeel/dotweb

What's new?

重要：go版本适配升级为1.9+

New features:
* New feature：UploadFile.RandomFileName used to get random file name from uuid
* New feature: encodes.base64x used to quickly use base64 EncodeString and DecodeString
* New feature: session.NewRedisConfig use to create redis session config include serverUrl and storeKeyPre
* if you set custom storeKeyPre, it will be store key start with custom set, default is "dotweb:session:"
* New feature: framewrok.RedisClient add Ping(), to check redis is alived
* New feature: DevelopmentMode:default UseLog,default use RequestLogMiddleware,default Console Print
* New feature: 状态页：访问/dotweb/state时增加CurrentTime字段输出
* New feature: GetSessionStore add Redis Ping check，if not alived, it will be panic error
* New feature: add dotweb.ClassicWithConf(config *config.Config),support Start server with custom config
* New feature：完善RedisClient接口能力

Bug fixed：
* fixed: for #114 dotweb: fix error found by vet
* fixed: for #122 - dotweb没有打出 access log
* fixed: 修正Reponse自动释放时未重置body字段，导致内存溢出BUG
* fixed: for #112 自定义处理异常的时候设置返回数据的content-type 但是没有生效

调整：
* 合并const目录内容至consts文件,统一const定义文件
* 移除example/static
* 新增example/developmode,便于对developmode的理解
* 调整: dotweb.Classic移除自动UseRequestLog逻辑
* 调整：Session Redis模式时，新增sessionReExpire用于重置有效期，避免调用SessionUpdate导致不必要的redis数据交换
* 调整：Cache.Runtime调整map为sync.Map
* 调整：Session Redis模式时，gob.EncodeMap逻辑调整，移除自动注册interface{}
* 调整：UploadFile.Size实现方法，直接返回Header.Size数据
* 调整：dotweb.Classic签名为Classic(logPath string),若传入logPath为空，则默认以"bin-root/logs"为日志目录
* 调整：默认Log目录由"bin-root"为"bin-root/logs"
* 调整：CharsetUTF8值为"charset=utf-8"
* 调整：内置Vendor目录仅保留 golang.org/x/net包,移除redis与yaml包