[otrs] queue view requests

Hello everybody, I just have some small(?) requests: - a Next/Previous page would be nice in QueueView. It's very annoying to click Show all xxx tickets if the queue displays only 15 tickets and there are 60 in the queue, every time we move a ticket to another queue (no, changing the number of tickets displayed it not the solution :P). - also, it would be nice to add an option in AgentPreferences to set the number of default tickets shown - agents have different browsers/resolutions/fonts. Best regards, Ovidiu