Merged latest released tag (v3.2.10) into the stable branch (3-2-stable)

v3.2.10, which is already [released](http://weblog.rubyonrails.org/2013/1/2/Rails-3-2-10--3-1-9--and-3-0-18-have-been-released/) is not fully merged into 3-2-stable. [Version bumping commit](https://github.com/rails/rails/commit/8ba3df046f977dddd4bc46248db2a1355bc0ed1e) is missing.