fixed Composer constraints

Author: fabpot

Core/composer.json

@@ -23,7 +23,7 @@
         "symfony/event-dispatcher": "~2.1",
         "symfony/expression-language": "~2.6",
         "symfony/http-foundation": "~2.4",
-        "symfony/validator": "~2.5,>=2.5.9",
+        "symfony/validator": "^2.5.9",
         "psr/log": "~1.0",
         "ircmaxell/password-compat": "1.0.*"
     },

composer.json

@@ -32,7 +32,7 @@
         "symfony/finder": "~2.3",
         "symfony/intl": "~2.3",
         "symfony/routing": "~2.2",
-        "symfony/validator": "~2.5,>=2.5.9",
+        "symfony/validator": "^2.5.9",
         "doctrine/common": "~2.2",
         "doctrine/dbal": "~2.2",
         "psr/log": "~1.0",