app/views/layouts/application.html.erb
<!DOCTYPE html>
<html lang="<%= I18n.locale %>">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title><%= content_for?(:title) ? "#{yield(:title)} - #{ENV['APP_NAME']}" : ENV['APP_NAME'] %></title>
<meta name="description" content="<%= content_for?(:description) ? yield(:description) : ENV['APP_DESCRIPTION'] %>">
<%= render 'layouts/favicon' %>
<%= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track' => true %>
<%# Modernizr is required for Zurb Foundation %>
<%= javascript_include_tag 'vendor/modernizr', 'data-turbolinks-track' => true %>
<%= csrf_meta_tags %>
</head>
<body>
<header>
<%= render 'layouts/navigation' %>
</header>
<main role="main">
<%= render 'layouts/messages' %>
<%= yield %>
</main>
<footer>
<%= render 'layouts/footer' %>
</footer>
<%= javascript_include_tag 'application', 'data-turbolinks-track' => true %>
<% if Rails.env.production? %>
<script>
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','//www.google-analytics.com/analytics.js','ga');
ga('create', '<%= ENV["GOOGLE_ANALYTICS_ID"] %>', '<%= ENV["GOOGLE_ANALYTICS_URL"] %>');
ga('send', 'pageview');
</script>
<% end %>
</body>
</html>