title: Custom option value in select
body: <p>i am using a angular to populate an selectInput, but i want to use a "Custom" values in the option value</p>
  
  <p>My current output</p>
  
  <pre><code>&lt;select ng-change="getModels(selected.id)" ng-model="selected" ng-options="category.name for category in categories"&gt;
      &lt;option value="0"&gt;red&lt;/option&gt;
      &lt;option value="1"&gt;green&lt;/option&gt;
      &lt;option value="2"&gt;yellow&lt;/option&gt;
  &lt;/select&gt;
  </code></pre>
  
  <p>My Json</p>
  
  <pre><code>$scope.categories = [
      {id:1000, name:red}
      {id:2000, name:green}
      {id:3000, name:yellow}
  }
  </code></pre>
  
  <p>and i want this output:</p>
  
  <pre><code>&lt;select&gt;
      &lt;option value="1000"&gt;red&lt;/option&gt;
      &lt;option value="2000"&gt;green&lt;/option&gt;
      &lt;option value="3000"&gt;yellow&lt;/option&gt;
  &lt;/select&gt;
  </code></pre>