change construction of the app
use unicorn as a web server
use foreman to launch app
Revert "change construction of the app"

This reverts commit 49682cb1b9e0c03bad554f3bb47c8bf04780f1c1.
add layout file
create public and add html kickstart
use scss for css
use coffee script for js
add Gemfile.lock
change url for poem_list, add card images