XSelection.hs: +2 functions, safePromptSelection and unsafePromptSelection
XSelection.hs: +2 functions, safePromptSelection and unsafePromptSelection

Analogous to Run.hs patch; these use safeSpawn and unsafeSpawn respectively.

darcs-hash:20071019181137-f7719-95fbfe642137e957f8b5aa0bb1b10297a9ba4d8f

jthornber/XMonadContrib,jthornber/XMonadContrib