Changing page-slideshow to try a nested loop through categories (still not working);
Adding page-slide-list.php that ties to content-slide.php, a debug view of all slides without worrying about categories;
Adding cycle2 plugin and associated slides, which would apply to both page-slideshow and page-slide-list;
Adding 8rem margin to bottom of #main, and increasing z-index of footer to prevent unneeded overlap

Signed-off-by: Matt Bernhardt <mjbernha@mit.edu>
Removing deprecated hgroup element
Wrapping images 2 and 3 in checks to see whether they, in fact, exist.

Signed-off-by: Matt Bernhardt <mjbernha@mit.edu>
Fixing some CSS styles to improve display, allowing next/prev buttons to break out of .site container. Also adjusting slide width and changing indenting in some rules;
Implemented cycle2 plugin on slideshow page

Signed-off-by: Matt Bernhardt <mjbernha@mit.edu>