Fix for Right Sidebar Breaking to New Line

So I noticed that with 5.x-2.x-dev installed, the right sidebar in Garland would break to underneath the center content area when viewing the full size image. Viewing source revealed that it appeared that the Picasa container was not being closed. So I added an additional $output .= '</div>'; to the end of the HTML output portion of the "picasa_display_album_image()" function (line 212) in picasa.module.

I'm not sure if this is the best fix, and a better solution might need to be rolled into dev, but if anyone needs a quick fix, this seems to work OK.