Repository logo on projects pages styling

This logo could be a bit larger, but sometime we’re going to unify the 2 sets of styles on Drupal.org, and everything on project pages will get bigger. #3281224: Update all content types to 'new style' in current d7 Bluecheese theme → is the issue for that, and it can be previewed by adding new-style to the body tag classes. For the current styles, the sizing looks good and inline with the rest off the page.

I did adjust the styles a little to hopefully better-handle various aspect ratios of logos; and removed the float since floats tend to cause unexpected wrapping issues.

Automatically closed - issue fixed for 2 weeks with no activity.