[Observium] Custom Logo with latest SVN

Long time listener, first time caller.

I've been enjoying the SVN updates including the visual redesign. I was wondering if there is a new config option to set the logo on the new header bar. My config has the old one in place, but the redesigned bar is obviously smaller than the logo.

Thanks for all the great work! I use Observium at home for all my servers.

-Andy