Vote weighting

[andrewcmyers]

Multiple users have requested the ability to weight votes. It's not clear what would be the right way to do this. In test mode there would at least be a natural way to specify vote weights.

[andrewcmyers]

Test mode does now allow weights to be specified, but the way it's done is to replicate votes, which is not very efficient! The biggest challenge to doing the right thing is that all of the tabulation algorithms would need to be updated to understand that votes have weights.