Implemented bool Table columns on the GTK+ backend.
Added bool Table columns on Mac OS X.
Added code to prepare a state image list of checkboxes for adding checkbox columns to Table on Windows.
Began implementing checkboxes in the Windows Table.
Implemented hover-to-hot on Windows Table checkboxes.
Fixed up hover handling. Thanks to Jonathan Potter on Stack Overflow.
Implemented Windows Table checkbox clicking.
Finished the implementation of checkboxes on Windows Tables.