Merge branch '3.4' into 4.4

* 3.4:
  Fix branch-version

Author: nicolas-grekas

composer.json

@@ -48,6 +48,6 @@
     ],
     "minimum-stability": "dev",
     "extra": {
-        "branch-version": "4.4-dev"
+        "branch-version": "4.4"
     }
 }