Push Site

this script takes care of: 
 - Fetching gh-pages 
 - Create a temporary branch  
- Pulling from master a fresh copy of README.md
 - Moving README.md to the right place
 - Commit that change into the proper branch
 - Push it to gh-pages if everything goes well.
 - Remove the temporary branch

How do I use It?
--
1)  running `npm insall` due to new dependencies.
2) running in the repo directory `npm run pushsite`

Different branch? Different remote?

1) `scripts/pushsite.js --remote eventbrite --branch new-feature`