Fix mouse behaviour when using the 'l'ook command

[takkaria]

In [364], the <click> option was added to the list of possible commands when targeting, so when you look around("l"), it gives you the list of "[g,q,p,o,+,-,<dir>,<click>]". However if you actually click something to look at it, it just says 'target selected', and doesn't tell you what you just clicked on. Should either remove the "<click>" from the list or (better) put up a message saying "You see a xxx." or some such.

[ajps]

Single-click to select, double to target is probably the way to go.

[ajps]

Fixed in [819] - clicks now change focus of the 'look' command.