Added parser, DB models for financial data, and some initial charts.

1) Parsers are stored in the parsers directory. I currently have one parser
   that handles CSV output from Caselle.

2) Added flot as a submodule for graphing. Also added the flot sidebyside
   improved plugin as a submodule.

3) Modified home page so it shows year-by-year revenues and expenditures
   with the ability to hover and click on the graph. Clicking brings up
   a separate chart and table for that particular year, showing per-fund
   revenues and expenditures.