Merge branch '4.4'

* 4.4:
  Allow Symfony 5.0

Author: nicolas-grekas

composer.json

@@ -22,19 +22,19 @@
     "require-dev": {
         "doctrine/dbal": "^2.5",
         "psr/cache": "~1.0",
-        "symfony/console": "~3.4|~4.0",
-        "symfony/debug": "~4.1",
-        "symfony/dependency-injection": "~3.4.19|^4.1.8",
-        "symfony/doctrine-bridge": "~3.4|~4.0",
-        "symfony/event-dispatcher": "~4.3",
-        "symfony/http-kernel": "~3.4|~4.0",
-        "symfony/process": "~3.4|~4.0",
-        "symfony/property-access": "~3.4|~4.0",
-        "symfony/serializer": "~3.4|~4.0",
+        "symfony/console": "^3.4|^4.0|^5.0",
+        "symfony/debug": "^4.1|^5.0",
+        "symfony/dependency-injection": "^3.4.19|^4.1.8|^5.0",
+        "symfony/doctrine-bridge": "^3.4|^4.0|^5.0",
+        "symfony/event-dispatcher": "^4.3|^5.0",
+        "symfony/http-kernel": "^3.4|^4.0|^5.0",
+        "symfony/process": "^3.4|^4.0|^5.0",
+        "symfony/property-access": "^3.4|^4.0|^5.0",
+        "symfony/serializer": "^3.4|^4.0|^5.0",
         "symfony/service-contracts": "^1.1",
-        "symfony/stopwatch": "~3.4|~4.0",
-        "symfony/validator": "~3.4|~4.0",
-        "symfony/var-dumper": "~3.4|~4.0"
+        "symfony/stopwatch": "^3.4|^4.0|^5.0",
+        "symfony/validator": "^3.4|^4.0|^5.0",
+        "symfony/var-dumper": "^3.4|^4.0|^5.0"
     },
     "conflict": {
         "symfony/event-dispatcher": "<4.3",