CHANGELOG for 2.1.x

This changelog references the relevant changes (bug and security fixes) done

in 2.1 minor versions.

To get the diff for a specific change, go to https://github.com/symfony/symfony/commit/XXX where XXX is the change hash

To get the diff between two versions, go to https://github.com/symfony/symfony/compare/v2.1.0...v2.1.1

* 2.1.1 (2012-09-11)