Add "Oxygen" fonts files and CSS definition file

We'll start using it in a moment!
Fix homepage after menu/footer consolidation

Since the homepage didn't used to import Bootstrap, but does now, there were a
couple of issues. Mostly it was caused by "box-sizing" being set to "border-box"
rather than the Firefox-assumed "content-box".
Avoid loading "responsive" and "home" CSS files, except on homepage

It's less to load, and it'll be less messy in terms of achieving a consistent
style across the website.
Fixed Centering of Jumbotron
Adjusted ordering of standardized footer material

When the visible footer was inside the <div> of the main content, the line
didn't go all the way across the screen. Now it's outside, so it does.
Add Linux Libertine font; rename oxygen-fonts.css to elvis-fonts.css
Change footer logo "swoosh" to a 140px image, not dynamic resize

Since it's dynamically resized always to the same thing, we might as well just
resize it statically, so we can ensure better-quality resizing.
Revise the standardized footer

Now it works without loading the "responsive" and "home" CSS files that are
otherwise used only by the homepage.
Change "ELVIS Project" in navbar to use Linux Libertine
Actually fix the home page, this time.
Revise <a> URLs in the hompage's "pillars"

I changed them in the menu. Now I changed them in the pillars too!