Yet another engine update. This one actually brings together some of the things I've been working on previously. It's now possible to use tab completion on the console for looking up map and demo names. e.g.

   ]/map e1<TAB><TAB>
   e1m1      e1m4      e1m7
   e1m2      e1m5      e1m8
   e1m2ish   e1m5duel
   e1m3      e1m6

The same thing goes for the playdemo and timedemo commands. It should be relatively easy to add others as I go now, at least for other file based completions (e.g. exec, play, ...)