Hackathons Calendar/Signup

[samuelcouch]

owlbot hackathon-cal add big red hacks add big red hacks to the list of hackathons that we are collectively attending [this should be a protected command]
owlbot hackathon-cal (list) All the hackathons that we are collectively attending
owlbot hackathon-cal attending big red hacks add the user to the attending list for big red hacks
owlbot hackathon-cal remove from big red hacks if a user can't make it anymore [should only allow an admin or the users themselves to call this]

• Add hackathon to the calendar
  • Add details about the hackathon
  • Bus pickup time/location
    • Point person for said bus
• Remove hackathon from the calendar
• RSVP to hackathon
  • Change RSVP
• Generate a CSV dump of names/emails (so we can follow up via email)
• Slack reminder as well