Merge pull request #5 from alsii/master

set admin bundle dependency to greater than 2.3,

Author: whyte624

composer.json

@@ -14,8 +14,8 @@
   ],
   "require" : {
     "php": ">=5.4.0",
-    "sonata-project/admin-bundle": "~2.3",
-    "knplabs/knp-snappy-bundle": "~1.3"
+    "sonata-project/admin-bundle": ">=2.3",
+    "knplabs/knp-snappy-bundle": ">=1.3"
   },
   "autoload" : {
     "psr-0" : {