Merged r11648, r11649, r11650 from trunk to 2.3-stable....
Merged r11648, r11649, r11650 from trunk to 2.3-stable.
upgrade Rails 3.2.13.
git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/2.3-stable@11652 e93f8b46-1217-0410-a6f0-8f06a7374b81