Fix gitignore
Fix gitignore

okuta/chainer,ronekko/chainer,ktnyt/chainer,jnishi/chainer,benob/chainer,benob/chainer,ktnyt/chainer,jnishi/chainer,aonotas/chainer,hvy/chainer,niboshi/chainer,keisuke-umezawa/chainer,wkentaro/chainer,ktnyt/chainer,cemoody/chainer,pfnet/chainer,ktnyt/chainer,ysekky/chainer,cupy/cupy,wkentaro/chainer,AlpacaDB/chainer,truongdq/chainer,keisuke-umezawa/chainer,t-abe/chainer,niboshi/chainer,chainer/chainer,hvy/chainer,hvy/chainer,niboshi/chainer,chainer/chainer,AlpacaDB/chainer,truongdq/chainer,cupy/cupy,kiyukuta/chainer,keisuke-umezawa/chainer,chainer/chainer,tkerola/chainer,niboshi/chainer,keisuke-umezawa/chainer,okuta/chainer,anaruse/chainer,delta2323/chainer,hvy/chainer,muupan/chainer,chainer/chainer,kikusu/chainer,cupy/cupy,cupy/cupy,wkentaro/chainer,t-abe/chainer,kikusu/chainer,okuta/chainer,sinhrks/chainer,rezoo/chainer,jnishi/chainer,jnishi/chainer,kashif/chainer,wkentaro/chainer,muupan/chainer,sinhrks/chainer,okuta/chainer