title: <g:countrySelect> Tag: How to set values as country names instead of country codes
body: <p>On my view, instead of using a normal <code>&lt;g:textField&gt;</code> field in the form, I would like to make use of Grails' <code>&lt;g:countrySelect&gt;</code> widget.</p>
  
  <h2>My problem</h2>
  
  <pre><code>&lt;g:countrySelect name="country" value="${myObjInstance?.country}"/&gt;
  </code></pre>
  
  <p>...produces...</p>
  
  <pre><code>&lt;select name="country" id="country"&gt;
     &lt;option value="afg"&gt;Afghanistan&lt;/option&gt;
     &lt;option value="alb"&gt;Albania&lt;/option&gt;
     ...
  &lt;/select&gt;
  </code></pre>
  
  <p>This would mean that, when the form is submitted, it will assign the value as country code (e.g. "afg") instead of the country name ("Afghanistan"). I prefer using the full country name as value. If possible, how do I achieve this?</p>