title: select2: control how many options to show
body: <p>I have a select box that shows about 7 options. How can I make <code>select2</code> show more options?</p>
  
  <pre><code>&lt;td class="span4"&gt;&lt;select id="tec" class="span4"&gt;&lt;option&gt;&lt;/option&gt;
      &lt;option&gt;A1&lt;/option&gt;&lt;option&gt;A2&lt;/option&gt;&lt;option&gt;C1&lt;/option&gt;
      &lt;option&gt;C2&lt;/option&gt;&lt;option&gt;C3&lt;/option&gt;&lt;option&gt;E1&lt;/option&gt;
      &lt;option&gt;E2&lt;/option&gt;&lt;option&gt;G1&lt;/option&gt;&lt;option&gt;G2&lt;/option&gt;
      &lt;/select&gt;
  &lt;/td&gt;
  </code></pre>
  
  <p><strong>It's about showing more choices, not about selecting</strong></p>