Fixed Image Logo / No Logo Background Problem + CSS Minified and Compressed

Previously I only changed the background color (to white) which worked great for text based "logos" but screwed up image based logos because the black background was missing. I felt bad and amateurish :)
So I have separated the two classes (one for all logos (text) and one additional for when images are used) and placed the "extra css" related to background coloring + image sizing in an IF statement so it will only get triggered if a user adds an image based logo. Tested and it's working as it should!
Also CSS was minified and YUI Compressed. And a couple of trailing blank spaces cleaned up in post.hbs.