title: libpng warning: interlace handling should be turned on when using png_read_image in Python/PyGame
body: <p>I'm using PyGame for Python, and have been receiving the following warning when loading .png images with <code>pygame.image.load</code>:</p>
  
  <pre><code>libpng warning: Interlace handling should be turned on when using png_read_image
  </code></pre>
  
  <p>It doesn't affect the program, but has become particularly annoying. I've scoured the web for an answer to no avail.</p>
  
  <p>I'm currently using 32 bit Python 3.3 with PyGame 1.9.2</p>
  
  <p>Any ideas as to how I can get the warning to disappear?</p>