Excalibur: single-game-round tournament software

[Absotively]

@dodgepong

Something that would be really handy would be a way to see a player’s match history besides looking at the “All Rounds” page, just so you can easily see if players are sufficiently alternating the sides they are playing, and not getting rematches.

I won’t promise this will get done, but I did make an issue for it.