- When a nextmapoverride is in play, do not insert the just-played map into the GP Rank
- Put all the behaviour that determines which Round icon to show in exactly one places
Also, fix a bug where it would show the skin realname for a spectating player's tally instead of the ROUND text.
Resolves most of #772.
- Match maximum size of levels array to ROUNDQUEUE_MAX, to prevent edge cases
- Explicitly check that numLevels does not equal/exceed array size before writing