Round counts in game history don't account for ties

[karlmdavis]

Here's how things look in a 1-round-max game, if the first throws are ties:

Not a giant problem, but definitely confusing.

[karlmdavis]

I'd estimate this as follows:

• 0.75h: Add a GameRound.getAdjustedRoundIndex() method.
• 0.5h: Add unit tests for the new method.
• 0.25h: Update game.jsp to use the new method.

That works out to 1.5h total.

[karlmdavis]

Ended up taking 0.95h total.