If no event

Hi, hi!

- Got rid of commented code on `index.html`
- Added logic for a today buffer
 - Before, if an event was "today" it would be considered _past_ one minute after midnight today. Now there is a 24 hour buffer so today's events show up today.
- If there are no upcoming events, instead of showing nothing it shows "No upcoming events. Check out past events!" and links to event page.