git `.git/hooks/pre-post` to commite bundles into `production` branch

pre-post

```
#!/bin/sh

branch=$(git branch | sed -n -e 's/^\* \(.*\)/\1/p')

if [ "master" != "$branch" ]; then
  exit;
fi

git checkout production
git reset --hard master
npm run build
git add ./dist -f
git commit -m 'production build'
git push origin production -f
git checkout master
```