Adds an optional keep-open argument to all select.lua script bindings
that prevents the menu from closing after a selection.
Menus that display selection state (tracks, audio device) or a current
position indicator (playlist, chapter, edition, subtitle line) are
wrapped in a recursive function so the list is rebuilt after each
selection and the indicators remain accurate. default_item is passed to
preserve the cursor position on the last selected item.
The history confirmation dialog reopens the history menu when No is
selected, and closes when Yes is selected as there is nothing to show
anymore.
Pavel
53796ca2ea