[Xmonad] darcs patch: NextWorkspace: Go forward or backward (and 2 more)

[Don Stewart]

mail:

> Sun Oct  7 12:39:33 CEST 2007  mail at joachim-breitner.de
>   * Move my NextWorkspace functionality into CycleWS
>   Hi,
>   
>   This patch merges the additional functionality of my NextWorkspace into CycleWS,
>   using a compatible interface for what was there before.
>   
>   Greetings,
>   Joachim

Done.