Real candidate numbers

This fetches + displays the total for "Personal funds loaned and contributed to campaign" and "% of the total amount raised is personal funds".

In order to get accurate pictures of those numbers, we need to also fetch Loan data from Schedule B1. That spreadsheet is a bit hard to interpret, but I think that simply summing up the "Loan_Amt1" gives a good impression. (@lla2105: maybe worth verifying?).