Fixes #7295.

Cleans up round end summary.
Removes duplication of traitor summaries.
Attempts to improve how the traitor purchase log is presented.
Ghosts made manifest now have different names and assignments, otherwise one would get messages like "Anguished Phantom played as an Anguished Phantom".
Instead the message is "Anguished Phantom played as a Manifest Ghost".
Merge pull request #7300 from PsiOmegaDelta/RoundEnd

Fixes #7295.