[xmonad] darcs patch: XMonad.Core: make spawn smarter (and 1 more)

Thu Aug 14 18:42:17 EDT 2008 gwern0@gmail.com * XMonad.Core: make spawn smarter Have spawn examine $SHELL if it exists. $SHELL is the user's preferred shell, and may do many things the user wants but the default /bin/sh does not. Thu Aug 14 19:05:58 EDT 2008 gwern0@gmail.com * Main.hs: fix haddock quoting