Adds a custom i18n backend that lazily loads translations files.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@10843 e93f8b46-1217-0410-a6f0-8f06a7374b81

config/initializers/30-redmine.rb

@@ -1,6 +1,5 @@
 I18n.default_locale = 'en'
-# Adds fallback to default locale for untranslated strings
-I18n::Backend::Simple.send(:include, I18n::Backend::Fallbacks)
+I18n.backend = Redmine::I18n::Backend.new
 
 require 'redmine'