[Xmonad] darcs patch: put doLayout in the X monad. (and 1 more)

Hi all, The new change here is beautify tile. It expands tile by about five lines, but in the process breaks it up into more generally useful functions (e.g. for user who wanted three columns in tall mode). I think it's prettier this way. Two of the lines are unused utility functions, which we could drop, which deal with the "other" orientation (split_horizontally, etc). David Sat May 12 14:53:01 PDT 2007 David Roundy * put doLayout in the X monad. Tue May 15 08:40:11 PDT 2007 David Roundy * beautify tile