Merge pull request #25 from TomHAnderson/hotfix/rollback-zf2.4

Rollback to ZF 2.4 until zend-hydrator fixes in Doctrine are in

Author: TomHAnderson

composer.json

@@ -22,17 +22,17 @@
     "require": {
         "php": ">=5.4",
         "doctrine/doctrine-module": "^0.8",
-        "zendframework/zend-modulemanager": "^2.5",
-        "zendframework/zend-mvc": "^2.5",
-        "zendframework/zend-servicemanager": "^2.5",
+        "zendframework/zend-modulemanager": "^2.4",
+        "zendframework/zend-mvc": "^2.4",
+        "zendframework/zend-servicemanager": "^2.4",
         "zfcampus/zf-api-problem": "^1.1",
         "zfcampus/zf-hal": "^1.2"
     },
     "require-dev": {
         "doctrine/doctrine-mongo-odm-module": "0.*@dev",
         "doctrine/doctrine-orm-module": "0.*@dev",
         "phpunit/phpunit": "^4.1",
-        "zendframework/zendframework": "^2.5",
+        "zendframework/zendframework": "^2.4",
         "zfcampus/zf-apigility-provider": "^1.1",
         "squizlabs/php_codesniffer": "^2.0"
     },