Nav pointer, semantic fixes, hover colour, file structure fixes

1. Added "Navigate" pointer to previously confusing splash page that
loads at a mid-way anchor point.
2. Removed all description code. The header image is moved into the
layout portion of the theme html.
3. Fixed a:hover styling of navbar, and pruned some extraneous
attributes.
4. Staff profiles added to files.
5. Updated copies and .css split of theme files.
6. Added playlists page to files.