* Got rid of Coffeescript
    - Gemfile updated
    - all .coffee files renamed and rewritten as JavaScript
* Re-wrote decks.js
    - No only de-coffeescripted it, but re-wrote in more moduler/non-global fashion
* Deck builder view updated to use new decks.js code
* Added :javascript yield block to application layout
* Fixe build_save route, had wrote HTTP verb (get -> post)