update for symfony ConfigurationInterface->ParamConverter change

old signature:
    public function apply(Request $request, ConfigurationInterface $configuration)
    public function supports(ConfigurationInterface $configuration)
new signature:
    public function apply(Request $request, ParamConverter $configuration)
    public function supports(ParamConverter $configuration)

the error is visible when testing:

```
/home/glen/.local/php/php55/bin/php /tmp/ide-phpunit.php --configuration /home/glen/scm/delfi/mds/app/phpunit.xml.dist MDS\MDSBundle\Tests\Controller\DefaultControllerTest /home/glen/scm/delfi/mds/src/MDS/MDSBundle/Tests/Controller/DefaultControllerTest.php
Testing started at 4:43 PM ...
PHPUnit 3.7.27 by Sebastian Bergmann.

Configuration read from /home/glen/scm/delfi/mds/app/phpunit.xml.dist

PHP Fatal error:  Declaration of Propel\PropelBundle\Request\ParamConverter\PropelParamConverter::apply() must be compatible with Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter\ParamConverterInterface::apply(Symfony\Component\HttpFoundation\Request $request, Sensio\Bundle\FrameworkExtraBundle\Configuration\ParamConverter $configuration) in /home/glen/scm/delfi/mds/vendor/propel/propel-bundle/Propel/PropelBundle/Request/ParamConverter/PropelParamConverter.php on line 27
PHP Stack trace:
PHP   1. {main}() /tmp/ide-phpunit.php:0
PHP   2. IDE_Base_PHPUnit_TextUI_Command::main() /tmp/ide-phpunit.php:506
PHP   3. PHPUnit_TextUI_Command->run() /tmp/ide-phpunit.php:268
PHP   4. PHPUnit_TextUI_TestRunner->doRun() /usr/share/pear/PHPUnit/TextUI/Command.php:176
PHP   5. PHPUnit_Framework_TestSuite->run() /usr/share/pear/PHPUnit/TextUI/TestRunner.php:349
PHP   6. PHPUnit_Framework_TestSuite->runTest() /usr/share/pear/PHPUnit/Framework/TestSuite.php:745
PHP   7. PHPUnit_Framework_TestCase->run() /usr/share/pear/PHPUnit/Framework/TestSuite.php:775
PHP   8. PHPUnit_Framework_TestResult->run() /usr/share/pear/PHPUnit/Framework/TestCase.php:783
PHP   9. PHPUnit_Framework_TestCase->runBare() /usr/share/pear/PHPUnit/Framework/TestResult.php:648
PHP  10. PHPUnit_Framework_TestCase->runTest() /usr/share/pear/PHPUnit/Framework/TestCase.php:838
PHP  11. ReflectionMethod->invokeArgs() /usr/share/pear/PHPUnit/Framework/TestCase.php:983
PHP  12. MDS\MDSBundle\Tests\Controller\DefaultControllerTest->testIndex() /usr/share/pear/PHPUnit/Framework/TestCase.php:983
PHP  13. Symfony\Component\BrowserKit\Client->request() /home/glen/scm/delfi/mds/src/MDS/MDSBundle/Tests/Controller/DefaultControllerTest.php:11
PHP  14. Symfony\Bundle\FrameworkBundle\Client->doRequest() /home/glen/scm/delfi/mds/vendor/symfony/symfony/src/Symfony/Component/BrowserKit/Client.php:334
PHP  15. Symfony\Component\HttpKernel\Client->doRequest() /home/glen/scm/delfi/mds/vendor/symfony/symfony/src/Symfony/Bundle/FrameworkBundle/Client.php:111
PHP  16. Symfony\Component\HttpKernel\Kernel->handle() /home/glen/scm/delfi/mds/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/Client.php:81
PHP  17. Symfony\Component\HttpKernel\DependencyInjection\ContainerAwareHttpKernel->handle() /home/glen/scm/delfi/mds/app/bootstrap.php.cache:2307
PHP  18. Symfony\Component\HttpKernel\HttpKernel->handle() /home/glen/scm/delfi/mds/app/bootstrap.php.cache:3040
PHP  19. Symfony\Component\HttpKernel\HttpKernel->handleRaw() /home/glen/scm/delfi/mds/app/bootstrap.php.cache:2901
PHP  20. Symfony\Component\HttpKernel\Debug\TraceableEventDispatcher->dispatch() /home/glen/scm/delfi/mds/app/bootstrap.php.cache:2926
PHP  21. Symfony\Component\HttpKernel\Debug\TraceableEventDispatcher->preDispatch() /home/glen/scm/delfi/mds/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/Debug/TraceableEventDispatcher.php:128
PHP  22. Symfony\Component\EventDispatcher\ContainerAwareEventDispatcher->getListeners() /home/glen/scm/delfi/mds/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/Debug/TraceableEventDispatcher.php:319
PHP  23. Symfony\Component\EventDispatcher\ContainerAwareEventDispatcher->lazyLoad() /home/glen/scm/delfi/mds/vendor/symfony/symfony/src/Symfony/Component/EventDispatcher/ContainerAwareEventDispatcher.php:128
PHP  24. Symfony\Component\DependencyInjection\Container->get() /home/glen/scm/delfi/mds/vendor/symfony/symfony/src/Symfony/Component/EventDispatcher/ContainerAwareEventDispatcher.php:188
PHP  25. appTestDebugProjectContainer->getSensioFrameworkExtra_Converter_ListenerService() /home/glen/scm/delfi/mds/app/bootstrap.php.cache:2037
PHP  26. Symfony\Component\DependencyInjection\Container->get() /home/glen/scm/delfi/mds/app/cache/test/appTestDebugProjectContainer.php:1941
PHP  27. appTestDebugProjectContainer->getSensioFrameworkExtra_Converter_ManagerService() /home/glen/scm/delfi/mds/app/bootstrap.php.cache:2037
PHP  28. Symfony\Component\DependencyInjection\Container->get() /home/glen/scm/delfi/mds/app/cache/test/appTestDebugProjectContainer.php:1958
PHP  29. appTestDebugProjectContainer->getPropel_Converter_Propel_OrmService() /home/glen/scm/delfi/mds/app/bootstrap.php.cache:2037
PHP  30. spl_autoload_call() /home/glen/scm/delfi/mds/app/bootstrap.php.cache:1511
PHP  31. Composer\Autoload\ClassLoader->loadClass() /home/glen/scm/delfi/mds/app/bootstrap.php.cache:0
PHP  32. include() /home/glen/scm/delfi/mds/vendor/composer/ClassLoader.php:269

Process finished with exit code 255
```