Loosen inter-component dependencies to ~2.5

Author: weierophinney

composer.json

@@ -16,8 +16,8 @@
         "php": ">=5.3.23"
     },
     "require-dev": {
-        "zendframework/zend-di": "~2.5.0",
-        "zendframework/zend-mvc": "~2.5.0",
+        "zendframework/zend-di": "~2.5",
+        "zendframework/zend-mvc": "~2.5",
         "fabpot/php-cs-fixer": "1.7.*",
         "phpunit/PHPUnit": "~4.0"
     },