title: Laravel localization of validation rule 'before' and 'after' with parameter like 'today/tomorrow'
body: <p>Lets assume I have this rules in my model:</p>
  
  <pre><code>public $rules = [           
          'a_date'  =&gt; 'after:today',
          'b_date'  =&gt; 'before:today',
      ];
  </code></pre>
  
  <p>And I have this string in my <code>project\resources\lang\en\validation.php</code>:</p>
  
  <pre><code>    'after' =&gt; 'The :attribute must be a date after :date.',
      'before' =&gt; 'The :attribute must be a date before :date.',
  </code></pre>
  
  <p>I translate them into some language in <code>project\resources\lang\some-language\validation.php</code></p>
  
  <pre><code>    'after' =&gt; ':attribute *somelanguage* :date.',
      'before' =&gt; ':attribute *somelanguage* :date.',
  </code></pre>
  
  <p>But when I hit validation error in my app I see string like that:
  <code>*field* *some language* today</code> <br> (for example in Russian:<code>Поле a_date должно быть раньше чем today</code>)</p>
  
  <p>So <strong>the question is</strong>: How and where to replace this <code>today</code>(<em>and any other predifined words like that</em>) to desired localization?</p>
  
  <p>PS: I could use a custom validation as stated in docs <a href="https://laravel.com/docs/5.2/validation#localization" rel="nofollow">https://laravel.com/docs/5.2/validation#localization</a> <br> but it only aplied to certain fields and I wish it to replace <code>today</code> whenever I use it in any of fields.</p>