Fixes #45 Add a method for quickly selecting a particular year for date fields in the Spreadsheet Template
  - Add month and date selection boxes
  - Change year range to go back to 1800 to present year
  - Disallow selection of dates after today
  - Update jquery-ui to 1.10.4, add jquery-ui 1.10.4 smoothness theme
  - Remove jquery-ui 1.9.1 smoothness theme