Add rails template
Add rails template

So we can do rails new shipit -m template.rb

perobertson/shipit-engine,perobertson/shipit-engine,ershad/shipit-engine,Shopify/shipit-engine,Shopify/shipit-engine,ershad/shipit-engine,perobertson/shipit-engine,Shopify/shipit-engine,ershad/shipit-engine,ershad/shipit-engine,perobertson/shipit-engine,Shopify/shipit-engine,Shopify/shipit-engine,ershad/shipit-engine,perobertson/shipit-engine