/// Updates the file status asynchronously. The new file status is broadcast to clients and slaves afterwards. Warning: If g_IsExiting during callback then update likely did not happen.
/// Forces an update of the complete database status. Warning: If g_IsExiting during callback then update is incomplete.
/// Runs an update of the complete {{DatabaseDirectory}} status. Warning: If g_IsExiting during callback then update is incomplete. Callback is always called when done (or failed).
/// Runs an update of the file status of given paths. Warning: If g_IsExiting during callback then update is incomplete. Callback is always called when done (or failed). Do NOT use recurse, please. Recurse directories beforehand. Paths may contain db and pl macros.