Fix #51: symfony/console 5.0

Author: wapmorgan

composer.json

@@ -7,7 +7,7 @@
         "php": ">=5.4",
         "ext-tokenizer":"*",
         "ext-json": "*",
-        "symfony/console": "^3.4|^4.0"
+        "symfony/console": "^3.4|^4.0|^5.0"
     },
     "suggest": {
         "ext-json": "Adds ability to store report in JSON format"