fix bug in roi pooling forwarding with cpu
fix bug in roi pooling forwarding with cpu
delta2323/chainer,rezoo/chainer,keisuke-umezawa/chainer,hvy/chainer,ktnyt/chainer,jnishi/chainer,niboshi/chainer,cupy/cupy,okuta/chainer,ktnyt/chainer,kikusu/chainer,jnishi/chainer,okuta/chainer,keisuke-umezawa/chainer,ktnyt/chainer,wkentaro/chainer,tkerola/chainer,cupy/cupy,aonotas/chainer,pfnet/chainer,hvy/chainer,ktnyt/chainer,jnishi/chainer,hvy/chainer,ronekko/chainer,ysekky/chainer,niboshi/chainer,anaruse/chainer,cupy/cupy,wkentaro/chainer,cupy/cupy,wkentaro/chainer,kashif/chainer,chainer/chainer,jnishi/chainer,niboshi/chainer,chainer/chainer,hvy/chainer,chainer/chainer,okuta/chainer,keisuke-umezawa/chainer,kiyukuta/chainer,keisuke-umezawa/chainer,chainer/chainer,okuta/chainer,wkentaro/chainer,niboshi/chainer,kikusu/chainer