Fix total score not rounded
Fix total score not rounded

We could have a long global score. It now uses the same trick as in
board total for rounding.

Q42/TrelloScrum,evgenTraytyak/TrelloScrum,jessemecham/TrelloScrum,evgenTraytyak/TrelloScrum,Q42/TrelloScrum,jessemecham/TrelloScrum