and gtk_init error. Destroy dialog after running it.
* xfce4-settings-manager/xfce-settings-manager-dialog.c: Free
  the icon string.
* dialogs/accessibility-settings/main.c, dialogs/mouse-settings/main.c,
  dialogs/appearance-settings/main.c, dialogs/keyboard-settings/main.c,
  xfce4-settings-helper/main.c: Don't include <stdio.h>. Duno why I did
  that.


(Old svn revision: 27278)