Run.hs: improve haddock
Run.hs: improve haddock

This module too was causing horizontal scrolling because of the shell command. I managed to discover that you only need to specify 'png:' *or* "foo.png", not both, which trimmed off enough characters.
Also, I improved the docs for my functions.

darcs-hash:20080316223219-f7719-0accbb96dc6a14bbb5ba302a2dbae65c1a78fedd

kmels/xmonad-launcher,kmels/xmonad-launcher