title: AngularJS : Change placeholder text for Angular-chosen plugin when there is no match
body: <p>As you can see from title, I tried to change the placeholder text which says "No results match" and which is grey-out(disabled) from a selected tag.</p>
  
  <p>I tried with "placeholder" but it doesn't work.</p>
  
  <pre><code>&lt;div&gt;
      &lt;select chosen disable-search="true" id="newpaymentMethod"
              placeholder="Placeholder text"
              class="easytrade-input full-width" name="newpaymentMethod"
              ng-model="vm.newRecord.paymentMethod"
              ng-options="paymentMethod.type as paymentMethod.description
                  for paymentMethod in vm.paymentMethodOptions"
              required&gt;
      &lt;/select&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>Then I tried with "no_results_text", still doesn't work</p>
  
  <pre><code>&lt;div&gt;
      &lt;select chosen disable-search="true" id="newpaymentMethod"
              no_results_text="Placeholder test"
              class="easytrade-input full-width" name="newpaymentMethod"
              ng-model="vm.newRecord.paymentMethod"
              ng-options="paymentMethod.type as paymentMethod.description
                  for paymentMethod in vm.paymentMethodOptions"
              required&gt;
      &lt;/select&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>Any idea about it ? 
  Thanks</p>