title: count select option in protractor doesn't work
body: <p>I want to count the number of element in an select option, but it doesn't work.
  This is the HTML code of the website :</p>
  
  <pre><code>&lt;select class="kdninputtextrequired" id="OBJ_90200782_0" name="OBJ_90200782_0" size="1"&gt;
     &lt;option value=""&gt;(Sélectionnez un élément)&lt;/option&gt;
     &lt;option value="0"&gt;Monsieur&lt;/option&gt;
     &lt;option value="1"&gt;Madame&lt;/option&gt;
     &lt;option value="2"&gt;Mademoiselle&lt;/option&gt;
  &lt;/select&gt;
  </code></pre>
  
  <p>i tried to do this :</p>
  
  <pre><code>var nb = browser.element.all(by.id('OBJ_90200782_0')).count();
  expect(nb).toBe(4);
  </code></pre>
  
  <p>but i have this message : "Expected 1 to be 4."</p>
  
  <p>Why ? please help...</p>