Picker for whether to create Channels on initial configuration

[hrast01]

It would be nice if there was an option to skip the automatic channel configuration after a fresh install. Removing 30 or so channels is a pain once, but I've had times when I'm trying to work out problems where I've needed to remove them two or three different times.

[fnord12]

Just as an FYI, you can back up your settings. See the bottom of my release notes doc here:

https://github.com/fnord12/script.pseudotv/blob/master/Release%20Notes.md