Added CHANGELOG
Added CHANGELOG

Flowdalic/asmack,tks-dp/asmack,ZachGoldberg/asmack,chuangWu/asmack,Flowdalic/asmack,lovecc0923/asmack,lovecc0923/asmack,lizhangqu/asmack,ZachGoldberg/asmack,tks-dp/asmack,lizhangqu/asmack,chuangWu/asmack