Rails 4 routes must specify the HTTP request type

http://edgeguides.rubyonrails.org/upgrading_ruby_on_rails.html#upgrading-from-rails-3-2-to-rails-4-0-gemfile
Remove deprecated whiny nils config
Remove deprecated mass assignment config
Upgrade to secret_key_base
Use new method of defining rails confirmation alerts
Eager load in production
Remove committed compiled assets