Updated dependencies

- Updated zend-stdlib to `~2.7`
- Added zend-hydrator at `~1.0`

Author: weierophinney

composer.json

@@ -16,8 +16,9 @@
         "php": ">=5.5",
         "zendframework/zend-eventmanager": "~2.5",
         "zendframework/zend-servicemanager": "~2.5",
-        "zendframework/zend-form": "~2.5",
-        "zendframework/zend-stdlib": ">=2.5.0,<2.7.0"
+        "zendframework/zend-hydrator": "~1.0",
+        "zendframework/zend-form": "~2.6",
+        "zendframework/zend-stdlib": "~2.7"
     },
     "require-dev": {
         "zendframework/zend-authentication": "~2.5",
@@ -30,7 +31,7 @@
         "zendframework/zend-inputfilter": "~2.5",
         "zendframework/zend-json": "~2.5",
         "zendframework/zend-log": "~2.5",
-        "zendframework/zend-modulemanager": "~2.5",
+        "zendframework/zend-modulemanager": "~2.6",
         "zendframework/zend-session": "~2.5",
         "zendframework/zend-serializer": "~2.5",
         "zendframework/zend-text": "~2.5",