Fix Symfony version compatibility

Author: terox

composer.json

@@ -14,8 +14,8 @@
         "php": ">=5.5.3",
         "doctrine/common": "~2.2",
         "doctrine/orm": "~2.2",
-        "symfony/security": "~2.8|~3.2",
-        "symfony/options-resolver": "~2.8|~3.2",
+        "symfony/security": "^2.8|^3.0",
+        "symfony/options-resolver": "^2.8|^3.0",
         "ircmaxell/random-lib": "~1.0"
     },
     "require-dev": {