#43 Live filter

[Laurens Holst]

With a ‘live filter’ function, the user can simply
enter some search text, select some options and drag
some sliders, and the content will automatically update
to match the restrictions.

I think this would be a great enhancement of the search
functionality, and maybe we could have it directly
available everywhere, like the search field for the
message list pane in Thunderbird.

~Grauw