Add trace export support
Merge branch 'master' of github.com:CMS611-snap/snap-backend
Add duration to games list
Fix replayer to play the entire game

- also had the same bug as stress_test, where sockets were being
  multiplexed and therefore were treated as one user
Add support for names in traces

- replayer also uses uuids for player field, but joins as a name
  specified in the join event