--- a/config/environments/development.rb	Wed May 08 00:18:36 2013 +0900
+++ b/config/environments/development.rb	Wed May 08 00:29:54 2013 +0900
@@ -1,29 +1,29 @@
 Zeropaste::Application.configure do
-  # Settings specified here will take precedence over those in config/application.rb
+  # Settings specified here will take precedence over those in config/application.rb.
 
   # In the development environment your application's code is reloaded on
   # every request. This slows down response time but is perfect for development
   # since you don't have to restart the web server when you make code changes.
   config.cache_classes = false
 
-  # Show full error reports and disable caching
+  # Do not eager load code on boot.
+  config.eager_load = false
+
+  # Show full error reports and disable caching.
   config.consider_all_requests_local       = true
   config.action_controller.perform_caching = false
 
-  # Don't care if the mailer can't send
-  # config.action_mailer.raise_delivery_errors = false
+  # Don't care if the mailer can't send.
+  config.action_mailer.raise_delivery_errors = false
 
-  # Print deprecation notices to the Rails logger
+  # Print deprecation notices to the Rails logger.
   config.active_support.deprecation = :log
 
-  # Only use best-standards-support built into browsers
-  config.action_dispatch.best_standards_support = :builtin
-
-  # Do not compress assets
-  config.assets.compress = false
+  # Raise an error on page load if there are pending migrations
+  config.active_record.migration_error = :page_load
 
-  # Expands the lines which load the assets
+  # Debug mode disables concatenation and preprocessing of assets.
+  # This option may cause significant delays in view rendering with a large
+  # number of complex assets.
   config.assets.debug = true
-
-  config.eager_load = false
 end