Filter voting by session number
Added session resource and session filter for VotingResource #1
Wrong verbose_names for Session class
Session resource and filter for Vote
Scrapy initial stuff
fixed wrong uri members on party resource
Added scraper for group and party info. Still need to store models in DB
Merge branch 'master' of github.com:openkratio/proyecto-colibri
Allow member api to be filtered by name and id