Update composer.json

Author: alanburke

composer.json

@@ -22,7 +22,7 @@
   "require": {
     "php": ">=5.3.9",
     "apache/log4php": "2.3.*",
-    "symfony/validator": "2.7.*",
+    "symfony/validator": "3.2.*",
     "doctrine/annotations":"1.6.*",
     "doctrine/cache":"1.6.*"
   },