Allow Symfony 5.0

Author: kix

composer.json

@@ -11,9 +11,9 @@
     ],
     "require": {
         "php": ">=5.6.0",
-        "symfony/framework-bundle": "~3.0|~4.0",
-        "symfony/form": "~3.0|~4.0",
-        "symfony/console": "~3.0|~4.0",
+        "symfony/framework-bundle": "~3.0|~4.0|~5.0",
+        "symfony/form": "~3.0|~4.0|~5.0",
+        "symfony/console": "~3.0|~4.0|~5.0",
         "pimple/pimple": "~3.0",
         "monolog/monolog": "~1.4,>=1.4.1",
         "league/flysystem": "^1.0.37",