Replace ShuffledIterator with SerialIterator from the document.
Replace ShuffledIterator with SerialIterator from the document.

okuta/chainer,jnishi/chainer,rezoo/chainer,cupy/cupy,ktnyt/chainer,ysekky/chainer,pfnet/chainer,niboshi/chainer,ktnyt/chainer,keisuke-umezawa/chainer,jnishi/chainer,anaruse/chainer,jnishi/chainer,keisuke-umezawa/chainer,okuta/chainer,hvy/chainer,chainer/chainer,kashif/chainer,ronekko/chainer,wkentaro/chainer,cupy/cupy,chainer/chainer,wkentaro/chainer,cupy/cupy,kikusu/chainer,ktnyt/chainer,niboshi/chainer,chainer/chainer,hvy/chainer,kiyukuta/chainer,jnishi/chainer,keisuke-umezawa/chainer,aonotas/chainer,okuta/chainer,delta2323/chainer,niboshi/chainer,hvy/chainer,hvy/chainer,niboshi/chainer,cupy/cupy,wkentaro/chainer,wkentaro/chainer,keisuke-umezawa/chainer,tkerola/chainer,okuta/chainer,ktnyt/chainer,kikusu/chainer,chainer/chainer