Command: walk (dir)
         Fast walking in the outworld

Moves the character to the given direction as long as
he/she remains on the same map type, eg. plains.
Maximum number of moves is 20.

Possible directions: nw, n, ne, w, e, sw, s, se

Examples: walk e

Shortcuts: You can use the walk command with
           upper case directions.
           W is the same as 'walk w'
