Rewrite score computing, fixes #69
Created by: njoyard
This PR removes static, asynchronous representative score updates by replacing plain models with views in the
votescorescomputes the score consequence of each vote on the representative score ; it is mapped to the new VoteScore model that replaces ScoredVote (which extended Vote and computed scores in python).
dossierscoreswas introduced in a previous changeset but was rewritten to use
votescores; it aggregates votes over proposals from a single dossier and returns the score contribution of each dossier on representatives scores. It is mapped to the DossierScore model.
representativescoreaggregates scores from the
dossierscoresview over all dossiers for each representative and gives a direct queryable access to the score of each representative. It is mapped to the RepresentativeScore model.
This PR also removes score update facilities as they now don't have any use.
TL;DR: no more manual score updates, scores are computed on the fly.