Implement new stype of embed_id
Implement new stype of embed_id

wkentaro/chainer,jnishi/chainer,ronekko/chainer,kashif/chainer,anaruse/chainer,jnishi/chainer,ktnyt/chainer,wkentaro/chainer,okuta/chainer,keisuke-umezawa/chainer,tkerola/chainer,hvy/chainer,okuta/chainer,hvy/chainer,rezoo/chainer,ktnyt/chainer,jnishi/chainer,okuta/chainer,niboshi/chainer,chainer/chainer,chainer/chainer,keisuke-umezawa/chainer,niboshi/chainer,niboshi/chainer,keisuke-umezawa/chainer,ktnyt/chainer,hvy/chainer,okuta/chainer,niboshi/chainer,jnishi/chainer,chainer/chainer,keisuke-umezawa/chainer,aonotas/chainer,pfnet/chainer,ktnyt/chainer,hvy/chainer,wkentaro/chainer,wkentaro/chainer,chainer/chainer