Add competition features

[FeaRiTail]

Another idea came up:
How about competition features?

Like:
We track time for each safari, how fast it is/was completed. (and the player who did this)
(Sure: the first player to complete a safari creates this "record")

As soon as the next player completes the safari, we check: Is this guy faster than the current record? If so: Yippie, we got a new record! ;)

Things to do:

• Each safari needs to track its current "record-holding player"
• Each player needs to track, when the current safari was started so we can compute his time needed.
• when completing a safari: Check if a new record is/was created and annonouce it (maybe also add a reward for new record?)
• also: Maybe a kind of "list current records" command to see, who needed how many minutes/hours to complete each safari (only record holders)

[FeaRiTail]

Basically this enhancement is complete with the current "3.1" release.
The "showrecords" command has been introduced and the time-tracking for safaris is up and running.