Updated downloadVotes API to dynamically calculate slope/intercept. This is a hack pending the schema switch.
Updated downloadVotes API to dynamically calculate slope/intercept. This is a hack pending the schema switch.


Former-commit-id: 8ce7177152466e4a411e60d51f803aa68b948f5a
JeffreyBLewis/WebVoteView,JeffreyBLewis/WebVoteView,JeffreyBLewis/WebVoteView,JeffreyBLewis/WebVoteView