新增日志接口，方便外部捕捉定位问题

fix: zipper down 漏洞穿越

fix: 同一个文件并发解析导致文件损坏

Merge pull request svga#266 from xxjy/master

fix bug: App crashes on API level below 21 caused by constructor.

Merge pull request svga#263 from daishengda2018/master

解决内存释放问题

feat: log utils add

Release 2.5.3

2.5.2 released

Release 2.5.2 beta