-Introduce a printf helper command which can print the sending command's name for you,
and treats the message as a format string if additional params follow
-Renamed permissions to required_rank
-Don't panic when the script author omits required_rank
-Reset state in the global table after reading it, so scripts can refresh it each time
It's a command that moves the user forward, backward, up, or down a specified amount of yalms.
It's quite helpful for exploration convenience, and doesn't replace setpos, rather, it's meant to complement it.
The set_position function was also extended to allow for lua code to specify the rotation/direction facing.
