Karma system

[qaisjp]

• [x] Remove user-- system (karma removing)
• [x] Fix karma conflict with gif
• [x] Add karma to !whois
• [x] Add karma help
• [ ] Reward 50 points if song has 3+ grabs
• [ ] Revert karma if the song was skipped
• [x] Add ability to directly set karma (mods only)
• [ ] Every fifteen minutes, award all "active users" (have they spoken within the last 15 minutes?) 2 karma points
• [x] Spending points
  • [x] 100 points to boost one spot
  • [x] 500 points to go to spot 2
• [ ] Give bot 1.5k karma for each day she lives
• [x] Gifting system
• [ ] taglines!