Restricting worker & thread count for Puma
Restricting worker & thread count for Puma

- Procfile - According to the Heroku docs, a hobby instance can only
  handle 2- 4 workers, and we are currently set for 5. Also, we haven't
  confirmed that our code is thread safe, so reducing threads until
  that has happened

Updates #821

EBWiki/EBWiki,BOWiki/BOW,EBWiki/EBWiki,BOWiki/BOW,BOWiki/BOW,EBWiki/EBWiki,EBWiki/EBWiki