Free constraints on the dependencies

Author: awartoft

composer.json

@@ -9,11 +9,11 @@
     }
   ],
   "require": {
-    "zendframework/zend-servicemanager": "~2.5",
-    "zendframework/zend-stdlib": "~2.5",
-    "zendframework/zend-math": "~2.5",
-    "zendframework/zend-http": "~2.5",
-    "doctrine/doctrine-module": "~0.8",
+    "zendframework/zend-servicemanager": "^2.5 || ^3.0",
+    "zendframework/zend-stdlib": "^2.5",
+    "zendframework/zend-math": "^2.5",
+    "zendframework/zend-http": "^2.5",
+    "doctrine/doctrine-module": "^0.9",
     "php": ">=5.5.0"
   },
   "require-dev": {