[xmonad] darcs patch: U.Scratchpad: add general spawn action to close issue 249

Fri Feb 13 17:36:42 MST 2009 wirtwolff@gmail.com * U.Scratchpad: add general spawn action to close issue 249 Adds scratchpadSpawnActionCustom where user specifies how to set resource to "scratchpad". This allows use of gnome-terminal, etc. Add detail to RationalRectangle documentation; strip trailing spaces.