title: dompdf inserts blank page at end of document
body: <p>I'm generating a pdf document using dompdf 0.6.0, and have a strange issue where a blank page is being created at the end. My (simplified) html:</p>
  
  <pre><code>&lt;!DOCTYPE html&gt;
  &lt;html&gt;
  &lt;head&gt;
  &lt;meta http-equiv="content-type" content="text/html; charset=UTF-8"&gt;
  &lt;title&gt;PDF&lt;/title&gt;
  &lt;style type="text/css"&gt;
  @page{ margin: 0;}
  
  .page{
      width: 612px; 
      height: 792px; 
      overflow: hidden; 
      font-family: Arial, Helvetica; 
      position: relative; 
      color: #545554;
      page-break-after: always;
  }
  &lt;/style&gt;
  &lt;/head&gt;
  &lt;body&gt;
  &lt;div class="page" style="background-image: url(page1.jpg);"&gt;
  ...
  &lt;/div&gt;
  
  &lt;div class="page" style="background-image: url(page2.jpg);"&gt;&lt;/div&gt;
  
  &lt;div class="page" style="background-image: url(page3.jpg); color: white;"&gt;
  ...
  &lt;/div&gt;
  &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>
  
  <p>The first three pages look amazing, but there is a blank page at the end. I've read dompdf is picky about nesting and compliance and such, but the html is super clean and checks out.</p>