show all of 2013 in the calendar
scrape vote choices
rename votes to election_votes
models for voting
scrape entire day; don't get choices for roll call
extra proposal_cdeppk column

because sometimes we know the vote is about a proposal but we don't have
the proposal in a database.
save voting sessions to the database
save vote records to database
allow for links to other proposal types
don't save proposal_cdeppk
save subject_html
scrape many days of votes in one go
don't scrape today
flush stdout after printing table name