Allow uers to specify the name of moving mean and variance in batch_norm interface.
Allow uers to specify the name of moving mean and variance in batch_norm interface.

Canpio/Paddle,pkuyym/Paddle,tensor-tang/Paddle,QiJune/Paddle,chengduoZH/Paddle,baidu/Paddle,Canpio/Paddle,lcy-seso/Paddle,Canpio/Paddle,QiJune/Paddle,PaddlePaddle/Paddle,baidu/Paddle,lcy-seso/Paddle,PaddlePaddle/Paddle,tensor-tang/Paddle,tensor-tang/Paddle,lcy-seso/Paddle,chengduoZH/Paddle,jacquesqiao/Paddle,putcn/Paddle,baidu/Paddle,PaddlePaddle/Paddle,putcn/Paddle,lcy-seso/Paddle,baidu/Paddle,putcn/Paddle,Canpio/Paddle,luotao1/Paddle,jacquesqiao/Paddle,jacquesqiao/Paddle,PaddlePaddle/Paddle,PaddlePaddle/Paddle,QiJune/Paddle,luotao1/Paddle,reyoung/Paddle,pkuyym/Paddle,chengduoZH/Paddle,Canpio/Paddle,PaddlePaddle/Paddle,luotao1/Paddle,reyoung/Paddle,PaddlePaddle/Paddle,reyoung/Paddle,Canpio/Paddle,putcn/Paddle,chengduoZH/Paddle,reyoung/Paddle,lcy-seso/Paddle,pkuyym/Paddle,jacquesqiao/Paddle,pkuyym/Paddle,lcy-seso/Paddle,QiJune/Paddle,jacquesqiao/Paddle,reyoung/Paddle,jacquesqiao/Paddle,putcn/Paddle,pkuyym/Paddle,QiJune/Paddle,putcn/Paddle,luotao1/Paddle,QiJune/Paddle,pkuyym/Paddle,baidu/Paddle,chengduoZH/Paddle,luotao1/Paddle,Canpio/Paddle,luotao1/Paddle,tensor-tang/Paddle,reyoung/Paddle,tensor-tang/Paddle,luotao1/Paddle,Canpio/Paddle