[feature request] Preset Browser broadcasters

[d.healey]

@DanH Yeah that's another way to do it. But in my case I don't want any factory presets.

[Christoph Hart]

Actually I'm not sure if the juce::ListBox class can have a "deselect" action, so you would need to hack around in there.

[d.healey]

@Christoph-Hart I think I'll just track the selected index in my script and if the index is the same as the last index I know it's been deselected :)

[d.healey]

Am I being silly or is the favourite button state obj.buttonState inverted? Aha! It triggers on mouse up not mouse down :)