fix donation stuff
log round id
puzzle selector mongodb query strategy
puzzle2 mongodb migration script
Merge branch 'puzzle-picker'

* puzzle-picker:
  puzzle2 mongodb migration script
  puzzle selector mongodb query strategy
fix deploy script
Revert "puzzle selector mongodb query strategy"

This reverts commit 51a986d6c31e834b452547e4a6014127c30ea7b6.
improve round exception logging