Test components using their lowest possible deps

Author: nicolas-grekas

composer.json

@@ -17,12 +17,13 @@
     ],
     "require": {
         "php": ">=5.3.3",
-        "symfony/event-dispatcher": "~2.1",
+        "symfony/event-dispatcher": "~2.2",
         "symfony/http-foundation": "~2.1",
         "symfony/http-kernel": "~2.1"
     },
     "require-dev": {
-        "symfony/form": "~2.0",
+        "symfony/form": "~2.0,>=2.0.5",
+        "symfony/locale": "~2.0,>=2.0.5",
         "symfony/routing": "~2.2",
         "symfony/validator": "~2.2",
         "doctrine/common": "~2.2",