Towards a new site layout.

The css/ and js/ files come from the PURECSS framework. They are responsible
for the site layout and the responsiveness of the site.
In order to avoid needing to use a footer (with the resulting problem
of how to push the footer to the bottom of the page), I simply
set up an about page which contains exactly the same content.
A streamlined academics page.

In order to present my publications, presentations, and pedagogy,
I created the academics page. This made the teaching page redundant
and otherwise unnecessary.
I have no idea why this file was there anyway.
Making the menu via the PURECSS framework.

The default layout incorporates the PURECSS menu framework.
I also added the social links to that menu.
Various content changes. Mostly for aesthetic/practical reasons.
Also, worked towards incorporating more markdown syntax
Added an author keyword to the post.
Merge branch 'redesign' into develop