This commit makes the header (site's name and logo) a link which points back to
the site's "/" (I.E. Home page/route). It, also, centralises the header and the
navigation menu (in the header). This is so the header doesn't look weird when
viewed on a mobile phone.
I removed the <hr> at the bottom of the file because the site has enough styling
applied to it to make the <hr> look out of place now. I can clearly
denote/identify where the site's (front-end) header and footer stops and starts.
I move the alert section to the /layouts/header.html template because
it was easier to get it to render between the logged-in user's site
header and the site's 'normal' header.
The site's side-menu (for logged-in users) still needs stuff adding to
it -- and tweaking -- but the base style, layout and whatnot is in
place.
Craig Oates