I made note to add the “edit” link back into the pages, so expect an update within a day or so. As for the containers for the site title and menu, this will require changing a couple container classes. This will be found in the header.php file where you will find this around line 32 for the logo title area:
And then this for the navigation around line 65:
To make the site title container wider, you will need to shorten the nav one as well. Make sure whatever you do with these two containers that the two span classes equal 12 (12 grid layout). So for instance, if you want the site title one to be a bit wider, make it span5 and then make the nav one span7. So when you add to one, you have to take from the other.