title: Laravel recaptcha validation in registrar does not work
body: <p>I am newbie in Laravel.
  I've used this recaptcha package: <a href="https://github.com/greggilbert/recaptcha" rel="noreferrer">https://github.com/greggilbert/recaptcha</a>
  And the documentation saids that: 
  In your validation rules, add the following:</p>
  
  <pre><code>$rules = array(
          // ...
          'g-recaptcha-response' =&gt; 'required|recaptcha',
      };
  </code></pre>
  
  <p>By the way I use the laravel 5's Registrar:</p>
  
  <pre><code>&lt;?php namespace taxman\Services;
  
  use taxman\User;
  use Validator;
  use Illuminate\Contracts\Auth\Registrar as RegistrarContract;
  
  class Registrar implements RegistrarContract {
  
      /**
       * Get a validator for an incoming registration request.
       *
       * @param  array  $data
       * @return \Illuminate\Contracts\Validation\Validator
       */
      public function validator(array $data)
      {
          return Validator::make($data, [
              'name' =&gt; 'required|max:255',
              'email' =&gt; 'required|email|max:255|unique:users',
              'password' =&gt; 'required|confirmed|min:4',
              'telephone' =&gt; 'required',
              'g-recaptcha-response' =&gt; 'required|recaptcha',
          ]);
      }
  
      /**
       * Create a new user instance after a valid registration.
       *
       * @param  array  $data
       * @return User
       */
      public function create(array $data)
      {
          return User::create([
              'name' =&gt; $data['name'],
              'email' =&gt; $data['email'],
              'password' =&gt; bcrypt($data['password']),
          ]);
      }
  
  }
  </code></pre>
  
  <p>But in this case the laravel return with a error message: "The g-recaptcha-response is required", however in the view I used this command:</p>
  
  <pre><code>&lt;div class="form-group"&gt;
           {!! Recaptcha::render() !!}
   &lt;/div&gt;
  </code></pre>
  
  <p>And yes, the field is not empty!</p>
  
  <p>So, I think, I should put the <code>'g-recaptcha-response' =&gt; 'required|recaptcha'</code> somewhere else?
  Because it seems, in the Registrar's validator does not work.</p>