feature #433 Updated to Symfony 3.2.2 (javiereguiluz)

This PR was merged into the master branch.

Discussion
----------

Updated to Symfony 3.2.2

```
  - Updating twig/twig (v1.30.0 => v1.31.0)
    Checking out ddc9e3e20ee9c0b6908f401ac8353635b750eca7

  - Updating symfony/symfony (v3.2.1 => v3.2.2)
    Checking out 358c59fd21f9db7fdb465d1e07fba822d9e18e9e

  - Removing doctrine/dbal (v2.5.5)
  - Installing doctrine/dbal (v2.5.6)

  - Removing doctrine/doctrine-bundle (1.6.4)
  - Installing doctrine/doctrine-bundle (1.6.6)

  - Removing sensio/distribution-bundle (v5.0.17)
  - Installing sensio/distribution-bundle (v5.0.18)

  - Removing sensio/framework-extra-bundle (v3.0.18)
  - Installing sensio/framework-extra-bundle (v3.0.19)

  - Removing symfony/monolog-bundle (3.0.1)
  - Installing symfony/monolog-bundle (v3.0.3)

  - Removing symfony/phpunit-bridge (v3.2.1)
  - Installing symfony/phpunit-bridge (v3.2.2)

  - Removing swiftmailer/swiftmailer (v5.4.4)
  - Installing swiftmailer/swiftmailer (v5.4.5)
```

Commits
-------

05063e1 Updated to Symfony 3.2.2

Author: javiereguiluz