title: simple_form text input
body: <p>I'm switching my application over to use <code>simple_form</code> but I'm a little confused about how to display a text input. For instance when I do the following:</p>
  
  <pre><code>f.input :foobar # &lt;textarea name = "model[foobar]"&gt;&lt;/textarea&gt;
  </code></pre>
  
  <p>I get a textarea instead instead in input w/ a type of text. How can I force simple_form to output a text input? </p>