Cuba starter pack from @harmoni-io
Added shotgun as a missing dev dependency
Thanks to @maynkj and @frodsan for the app template :heart:
Instructions on how to get started
Sadly have to switch from dep to bundler

I need to be able to know exactly which gem version I'm using.
`dep` doesn't give me that.

* Removed .gems and .gems.dev
* Adjust README to bundler
* Fixup Bundler
* Adjusted Makefile for Bundler
Sass and Skeleton