update license information
update license information

E312232595/cobarclient,alibaba/cobarclient,WilliamRen/cobarclient,howepeng/cobarclient,yuzhu712/cobarclient,wangcan2014/cobarclient,IBYoung/cobarclient,matrix-stone/cobarclient,fengshao0907/cobarclient,elijah513/cobarclient,c3p0hz/cobarclient,simplechen/cobarclient