Considering this project has been around for over a decade and I don't see people's need for the functionality changing anytime soon, I think it makes a lot of sense for us to document the code for future maintainers.

I think at the very least we should focus on documenting any changes with basic code comments going forwards. [I added some basic method comments](https://github.com/JoeBiellik/tv

As far as I know, there are two ways of calling the "Change Case" functionality:
a) in the main window, click the little "v" button to the right of the "Add Filter" button, select "Change Case" from there (...)
OR
b) in the main window, click the "Add Filter" button, then set checkmark at "Change Case" (...)

Only b) works correctly - see screenshot: http://i.imgur.com/CzIzqmH.jpg

But a) r

1. -s/* options should produce warning to avoid confusion when they are ineffective (passing multiple times).
2. same goes for other non-overloadable options.