Merge branch '3.3' into 3.4

* 3.3:
  Fix composer deps

Author: nicolas-grekas

composer.json

@@ -20,9 +20,9 @@
         "ext-xml": "*",
         "symfony/cache": "~3.3|~4.0",
         "symfony/class-loader": "~3.2",
-        "symfony/dependency-injection": "~3.3-beta2|~4.0",
+        "symfony/dependency-injection": "~3.3|~4.0",
         "symfony/config": "~3.3|~4.0",
-        "symfony/event-dispatcher": "~3.3|~4.0",
+        "symfony/event-dispatcher": "^3.3.1|~4.0",
         "symfony/http-foundation": "~3.3|~4.0",
         "symfony/http-kernel": "~3.3|~4.0",
         "symfony/polyfill-mbstring": "~1.0",
@@ -70,7 +70,7 @@
         "symfony/property-info": "<3.3",
         "symfony/serializer": "<3.3",
         "symfony/translation": "<3.2",
-        "symfony/validator": "<3.3-rc2",
+        "symfony/validator": "<3.3",
         "symfony/workflow": "<3.3"
     },
     "suggest": {