Fix softmax
Fix softmax

ronekko/chainer,AlpacaDB/chainer,hvy/chainer,muupan/chainer,wkentaro/chainer,umitanuki/chainer,laysakura/chainer,wkentaro/chainer,chainer/chainer,tscohen/chainer,Kaisuke5/chainer,t-abe/chainer,ikasumi/chainer,hvy/chainer,t-abe/chainer,okuta/chainer,wkentaro/chainer,aonotas/chainer,niboshi/chainer,keisuke-umezawa/chainer,tkerola/chainer,ktnyt/chainer,ysekky/chainer,delta2323/chainer,okuta/chainer,keisuke-umezawa/chainer,cupy/cupy,kikusu/chainer,muupan/chainer,ktnyt/chainer,truongdq/chainer,kiyukuta/chainer,hvy/chainer,wkentaro/chainer,hidenori-t/chainer,tigerneil/chainer,rezoo/chainer,jnishi/chainer,sinhrks/chainer,ktnyt/chainer,cemoody/chainer,niboshi/chainer,ktnyt/chainer,truongdq/chainer,masia02/chainer,keisuke-umezawa/chainer,chainer/chainer,pfnet/chainer,okuta/chainer,cupy/cupy,cupy/cupy,chainer/chainer,minhpqn/chainer,ytoyama/yans_chainer_hackathon,kikusu/chainer,benob/chainer,jnishi/chainer,AlpacaDB/chainer,keisuke-umezawa/chainer,chainer/chainer,hvy/chainer,sinhrks/chainer,sou81821/chainer,cupy/cupy,niboshi/chainer,jnishi/chainer,jnishi/chainer,yanweifu/chainer,1986ks/chainer,kashif/chainer,okuta/chainer,benob/chainer,niboshi/chainer,anaruse/chainer