Highlight contact list search
It'll be nice to improve contact list search. At the moment when you start typing in CL, selection jumps on the corresponding item. But it'll be extremely nice to highlight the matching part of nick for the items matching your query.
E.g. when you type "So", selection jumps to the "Sol", and "So" is colored in the "Sol", "Sophie", "Sorcerer"...
Another nice addition would be just temporary CL filter—not matching items shouldn't be shown while you type and until you click in the "off-CL-item" area.