begin of rails 4 and ruby 2.0
added  gems accordingly to a new rails app
correct identation
Updating to Rails 4.0 final.
Fixing with: :exception weird text on ApplicationController.
Using final sass-rails.
Adding gems to make ActiveAdmin work with Rails 4.
Update _secure_headers.rb
Removing vars disabling, had some issues on Rails 4.
Using shoulda from github for now.
cleanup cleaned
fixed some heroku commands call