Merge pull request #1 from yokai-php/bugfix-symfony-flex-compatibility

Changed dependency from symfony/symfony to symfony/dependency-injection

Author: yann-eugone

composer.json

@@ -12,7 +12,7 @@
     ],
     "require": {
         "php": ">=5.5.9",
-        "symfony/symfony": "~2.7|~3.0"
+        "symfony/dependency-injection": "~2.7|~3.0"
     },
     "require-dev": {
         "phpunit/phpunit": "~4.6"