title: Apigility not save documentation fields
body: <p>I have a problem with Apigility.</p>
  
  <p>When I will save the documentation of my REST service, only the field that describe the entire  REST service is saved.</p>
  
  <p>I am trying save the response body, for instance, without success.</p>
  
  <p>Some  things that I have checked before posting:</p>
  
  <ul>
  <li><p>I have the opcache and apc disabled.</p></li>
  <li><p>All requests after press save button are 200 OK.</p></li>
  <li><p>I try run composer update, without success.</p></li>
  </ul>
  
  <p>My composer.json</p>
  
  <p><code>json
  {
      "name": "zfcampus/zf-apigility-skeleton",
      "description": "Skeleton Application for Apigility",
      "type": "library",
      "license": "BSD-3-Clause",
      "keywords": [
          "api",
          "apigility",
          "framework",
          "zf2"
      ],
      "homepage": "http://apigility.org/",
      "support": {
          "email": "apigility-users@zend.com",
          "irc": "irc://irc.freenode.net/apigility",
          "source": "https://github.com/zfcampus/zf-apigility-skeleton",
          "issues": "https://github.com/zfcampus/zf-apigility-skeleton/issues"
      },
      "config": {
          "process-timeout": 5000
      },
      "extra": {
          "branch-alias": {
              "dev-master": "1.0-dev",
              "dev-develop": "1.1-dev"
          }
      },
      "require": {
          "php": "&gt;=5.4.8",
          "zendframework/zendframework": "~2.3",
           "zfcampus/zf-apigility": "~1.0-dev",
          "zfcampus/zf-apigility-documentation": "~1.0",
          "zfcampus/zf-development-mode": "~2.0",
          "doctrine/doctrine-orm-module": "0.*",
          "hounddog/doctrine-data-fixture-module": "0.0.*",
          "facebook/php-sdk-v4" : "4.0.*",
          "zfr/zfr-cors": "1.*",
          "zfcampus/zf-apigility-documentation-swagger": "1.0.*@dev"
      },
      "require-dev": {
          "zendframework/zftool": "dev-master",
          "zendframework/zend-developer-tools": "dev-master",
          "zfcampus/zf-apigility-admin": "~1.0",
          "zfcampus/zf-apigility-welcome": "~1.0",
          "zfcampus/zf-deploy": "~1.0"
      }
  }
  </code></p>