Currently, any key hit without a CTRL or META modifier is managed by ListView to
pop up a search box. But in some cases you don't want the search box, and maybe
you would like to define some global action mapped to a plain key hit (that now
are eaten by the search box code).

Please add a property such as setSearchBoxEnabled(), which defaults to true for
backward compability, to disable completely the search box feature (eventually,
add another method to programmatically open it, if the user want to explicitly
call it with another key binding, such as CTRL-SPACE).