Merge pull request #13 from fpapin/master

an update of digex-core to make it work with last silex release
fixed twig integration
disable twig cache when we are in debug mode
fixed translation in LazyRegisterServiceProvider
Update composer.json
updated to simplify digex

removed obsolete digex application, compiler stuffs and renamed commands
removed some obsolete dependencies
fixed boostrap for tests
fixed namespace use
fixed namespace
fixed ConfigurationServiceProvider
added WebTestCase utility
removed obsolete required lib
fixed WebTestCase
changed the way digex manage environment
set the environment to 'test' in WebTestCase
disabling exception_handler was troubleshoot for http exception handling test
Use symfony/console 2.2

In the 2.2 version, we can ask with hidden response in the console
Use the version 2.2.0-RC3
Merge pull request #14 from laupiFrpar/console-2.2

Use symfony/console 2.2
Update composer.json

changed symfony/console requirement