- Update IceWM to version 2.3.4 which now upholds --disable-rsvg switch

- Revert bogus changes to USE_GNOME and BEASTIE_DESC done in cf6ea18e
- Fix the header of `files/bsd-daemon.xpm' one more time: certain image
  loaders, e.g. Imlib2, employ overly zealous checks of XPM header (see
  line 155 of imlib2-1.7.0/src/modules/loaders/loader_xpm.c), so resort
  to more traditional /* XPM */ and move attribution to its own comment