title: Validate range of dates with Regula
body: <p>Is there any way to use @Range to validate a range of dates in Regula? (ditto @Min and @Max)</p>
  
  <p>Or do I need to use @Custom?</p>
  
  <pre><code>@Range(min=
  </code></pre>
  
  <p>and</p>
  
  <pre><code>@Range(max=
  </code></pre>
  
  <p>do not seem to accept anything of the type Date - only numbers or strings.</p>