[xmonad] Upgrading repo formats

[Don Stewart]

vogt.adam:
> Here are some graphs (plotted values) made from logs at
> code.haskell.org.
> 
> http://code.haskell.org/~aavogt/darcsVersions/core.png
> (http://code.haskell.org/~aavogt/darcsVersions/0)
> 
> http://code.haskell.org/~aavogt/darcsVersions/contrib.png
> (http://code.haskell.org/~aavogt/darcsVersions/1)
> 
> It looks like darcs-1 is very infrequently used to access core or
> contrib.
> 

Wow, very cool!!

I've never seen graphs of darcs v1 ... v2 migration. I bet the darcs
guys would like to know this, probably the c.h.o admins too.

Let's move!

-- Don