[Xmonad] darcs patch: XPrompt.hs: read history lazily (and 1 more)

Hi, two more patches. I'm cleaning up the code. ciao andrea Sat Aug 4 20:30:49 CEST 2007 Andrea Rossato * XPrompt.hs: read history lazily Instead of forcing the reading of all the history file we read it lazily. Sat Aug 4 20:32:52 CEST 2007 Andrea Rossato * XPrompt.hs: removed defaultPromptConfig. use defautlXPConfig instead