added support for local config file
added support for local config file

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