Change variable names for readability
Change variable names for readability

niboshi/chainer,keisuke-umezawa/chainer,ktnyt/chainer,jnishi/chainer,ktnyt/chainer,wkentaro/chainer,wkentaro/chainer,hvy/chainer,wkentaro/chainer,jnishi/chainer,tkerola/chainer,chainer/chainer,chainer/chainer,ktnyt/chainer,hvy/chainer,keisuke-umezawa/chainer,pfnet/chainer,wkentaro/chainer,niboshi/chainer,keisuke-umezawa/chainer,ktnyt/chainer,okuta/chainer,chainer/chainer,jnishi/chainer,keisuke-umezawa/chainer,niboshi/chainer,hvy/chainer,okuta/chainer,okuta/chainer,chainer/chainer,hvy/chainer,okuta/chainer,niboshi/chainer,jnishi/chainer