Stop returning useful values from the table data source.
Display font flags in rules list.
Space out the cases.
Fix up COL_FLAGS case.

There was some.. bad test code in here. It was asctually the same as it
is now at one point, but shotgun debugging made quick work of that.

Anyway, assign an action for the control now.
Rename updateRuleColorAtRow to updateRuleLabelAtRow.

Because that's what it really does.
Clean up a long line. Need to do more cleanup later.
Assign flags to rules when modified.

TODO: replace literal 1/2 shifts with constants.

TODO: replace literal column identifier strings with constants.