IMPORTANT - removed all sample files

This is very likely to cause merge conflict, it is for the greater good
Discuss at: http://meta.discourse.org/t/enough-with-the-sample-files/10351

From now on we use ENV to customise if needed

config/environments/production.rb

@@ -0,0 +1,79 @@
+Discourse::Application.configure do
+  # Settings specified here will take precedence over those in config/application.rb
+
+  # Code is not reloaded between requests
+  config.cache_classes = true
+  config.eager_load = true
+
+  # Full error reports are disabled and caching is turned on
+  config.consider_all_requests_local       = false
+  config.action_controller.perform_caching = true
+
+  # Disable Rails's static asset server (Apache or nginx will already do this)
+  config.serve_static_assets = false
+
+  if rails4?
+    config.assets.js_compressor  = :uglifier
+    config.assets.css_compressor = :sass
+  else
+    config.assets.compress = true
+  end
+
+  # stuff should be pre-compiled
+  config.assets.compile = false
+
+  # Generate digests for assets URLs
+  config.assets.digest = true
+
+  # Specifies the header that your server uses for sending files
+  config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for nginx
+
+  # Enable locale fallbacks for I18n (makes lookups for any locale fall back to
+  # the I18n.default_locale when a translation can not be found)
+  config.i18n.fallbacks = true
+
+  # specify your smtp url using the SMTP_URL env var eg:
+  # SMTP_URL=smtp://user:password@myhost.com
+  if ENV.key?('SMTP_URL')
+    config.action_mailer.smtp_settings = begin
+      uri = URI.parse(ENV['SMTP_URL'])
+      params = {
+        :address              => uri.host,
+        :port                 => uri.port || 25,
+        :domain               => (uri.path || "").split("/")[1],
+        :user_name            => uri.user,
+        :password             => uri.password,
+        :authentication       => 'plain',
+        :enable_starttls_auto => !ENV['SMTP_DISABLE_TLS']
+      }
+      CGI.parse(uri.query || "").each {|k,v| params[k.to_sym] = v.first}
+      params
+    rescue
+      raise "Invalid SMTP_URL"
+    end
+  else
+    config.action_mailer.delivery_method = :sendmail
+    config.action_mailer.sendmail_settings = {arguments: '-i'}
+  end
+
+  # Send deprecation notices to registered listeners
+  config.active_support.deprecation = :notify
+
+  # this will cause all handlebars templates to be pre-compiles, making your page faster
+  config.handlebars.precompile = true
+
+  # allows admins to use mini profiler
+  config.enable_mini_profiler = !ENV["DISABLE_MINI_PROFILER"]
+
+  # Discourse strongly recommend you use a CDN.
+  # For origin pull cdns all you need to do is register an account and configure
+  config.action_controller.asset_host = ENV["CDN_URL"] if ENV["CDN_URL"]
+
+  # a comma delimited list of emails your devs have
+  # developers have god like rights and may impersonate anyone in the system
+  # normal admins may only impersonate other moderators (not admins)
+  if emails = ENV["DEVELOPER_EMAILS"]
+    config.developer_emails = emails.split(",")
+  end
+
+end