Support Symfony 5 (#63)

#62

Author: nmeirik

composer.json

@@ -14,19 +14,19 @@
         "php": "^5.5 || ^7.0",
         "backup-manager/backup-manager": "^1.3",
         "nyholm/dsn": "^0.1",
-        "symfony/config": "^2.7 || ^3.1 || ^4.0",
-        "symfony/console": "^2.7 || ^3.1 || ^4.0",
-        "symfony/dependency-injection": "^2.7 || ^3.1 || ^4.0",
-        "symfony/filesystem": "^2.7 || ^3.1 || ^4.0",
-        "symfony/framework-bundle": "^2.7 || ^3.0 || ^4.0",
-        "symfony/http-kernel": "^2.7 || ^3.0 || ^4.0",
-        "symfony/yaml": "^2.7 || ^3.0 || ^4.0"
+        "symfony/config": "^2.7 || ^3.1 || ^4.0 || ^5.0",
+        "symfony/console": "^2.7 || ^3.1 || ^4.0 || ^5.0",
+        "symfony/dependency-injection": "^2.7 || ^3.1 || ^4.0 || ^5.0",
+        "symfony/filesystem": "^2.7 || ^3.1 || ^4.0 || ^5.0",
+        "symfony/framework-bundle": "^2.7 || ^3.0 || ^4.0 || ^5.0",
+        "symfony/http-kernel": "^2.7 || ^3.0 || ^4.0 || ^5.0",
+        "symfony/yaml": "^2.7 || ^3.0 || ^4.0 || ^5.0"
     },
     "require-dev": {
         "matthiasnoback/symfony-dependency-injection-test": "^1.2 || ^2.3",
         "matthiasnoback/symfony-config-test": "^2.2 || ^3.1",
         "nyholm/symfony-bundle-test": "^1.3.1",
-        "symfony/phpunit-bridge": "^3.4 || ^4.0"
+        "symfony/phpunit-bridge": "^3.4 || ^4.0 || ^5.0"
     },
     "suggest": {
         "league/flysystem-aws-s3-v3": "To use AWS S3, version 3",