U.EZConfig: add xK_Print <Print> to special keys
U.EZConfig: add xK_Print <Print> to special keys

Ignore-this: 9560b7c7c4424edb5cea6eec45e2b41d
Many setups are expecting xK_Print rather than
xK_Sys_Req, so make it available in additionalKeysP.

darcs-hash:20090302230741-d17f0-d238ee4d4b1977c4badae6ab8dde89590754be66

kmels/xmonad-launcher,kmels/xmonad-launcher