Add simple tests of newaxis and broadcastable python binding
Add simple tests of newaxis and broadcastable python binding

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