Add const prefixes
Add const prefixes

AlpacaDB/chainer,sinhrks/chainer,Kaisuke5/chainer,jnishi/chainer,niboshi/chainer,muupan/chainer,kikusu/chainer,minhpqn/chainer,kiyukuta/chainer,tigerneil/chainer,okuta/chainer,kuwa32/chainer,t-abe/chainer,keisuke-umezawa/chainer,kikusu/chainer,pfnet/chainer,ktnyt/chainer,rezoo/chainer,wavelets/chainer,ktnyt/chainer,niboshi/chainer,benob/chainer,chainer/chainer,anaruse/chainer,tscohen/chainer,masia02/chainer,AlpacaDB/chainer,ktnyt/chainer,truongdq/chainer,ikasumi/chainer,yanweifu/chainer,sinhrks/chainer,wkentaro/chainer,hvy/chainer,chainer/chainer,sou81821/chainer,niboshi/chainer,hidenori-t/chainer,cemoody/chainer,hvy/chainer,keisuke-umezawa/chainer,benob/chainer,jnishi/chainer,aonotas/chainer,okuta/chainer,cupy/cupy,niboshi/chainer,laysakura/chainer,jnishi/chainer,hvy/chainer,chainer/chainer,truongdq/chainer,woodshop/chainer,ytoyama/yans_chainer_hackathon,wkentaro/chainer,1986ks/chainer,wkentaro/chainer,okuta/chainer,delta2323/chainer,keisuke-umezawa/chainer,cupy/cupy,ktnyt/chainer,umitanuki/chainer,hvy/chainer,keisuke-umezawa/chainer,jnishi/chainer,kashif/chainer,tkerola/chainer,ysekky/chainer,woodshop/complex-chainer,cupy/cupy,muupan/chainer,ronekko/chainer,chainer/chainer,cupy/cupy,okuta/chainer,t-abe/chainer,wkentaro/chainer