Admin team wildcard search

[heuchi]

Use wildcard search for /admin team
You can use * and ? in the player name which is converted into a regular expression search internally. Since player names cannot contain any other characters that would needed to be escaped, it isn't done.
If no wildcard is used (no * or ?) a player's team color can be set even if the player is absent (as before).
If a wildcard is used and there is a unique match, the team color of that player is changed. If there is no match or more than one, an error message is printed.

Wildcard search is not case sensitive. Please let me know, if you want it to be.

Branch is now somehow misnamed... ;)

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[kimden]

There was a minor bug that led to kart colors not changing (unlike displayed teams in lobby), but seems like I have already fixed it (837ea11). I hope my logic didn't fail now and I haven't missed anything else :)

[heuchi]

Oops, yeah, I didn't see that wide_player_name was still used later.