Sortable Table 0.2

• the TableModel supports Widgets and Objects
  
• columns containing java.util.Comparables are automatically detected and flaged as sortable (so adding Strings or Integers just works)
  
• CSS class for column headers
• SortableTable class has the same interface as an HTMLTable (but it doesn't inherit from it). For example, you can use Cell and Row formatters.
• each column can have a DataFormatter. Objects in the model are formatted when displayed on the table