[Swiftmailer] updated Swiftmailer dep

Author: fabpot

src/Symfony/Bridge/Swiftmailer/composer.json

@@ -17,7 +17,7 @@
  ],
  "require": {
  "php": ">=5.3.3",
- "swiftmailer/swiftmailer": ">=4.2.0,<4.3-dev"
+ "swiftmailer/swiftmailer": ">=4.2.0,<4.4-dev"
  },
  "suggest": {
  "symfony/http-kernel": "2.2.*"