Merge branch '3.4' into 4.4

* 3.4:
  Remove "branch-alias", populate "version"

Author: nicolas-grekas

composer.json

@@ -39,9 +39,5 @@
         "psr-4": { "Symfony\\Component\\Workflow\\": "" }
     },
     "minimum-stability": "dev",
-    "extra": {
-        "branch-alias": {
-            "dev-master": "4.4-dev"
-        }
-    }
+    "version": "4.4-dev"
 }