This is the TODO list for xenmenu.  The items are listed in no particular
order.

* (run_prog) Strip leading path if security set.
* (run_prog) Expand environment variables in commands.  Is that needed?
* Make an easy-to-use configuration and installation script.
* (menu_func.c) Add ability to log to a file (syslog?) in error()
* (menu_func.c) Use terminal settings to determine how to clear the screen.
* Add terminal detection and curses print routines for those who can see them
  correctly.  In other words, make it so users can use their arrow keys to
  make selections.
* Rewrite the option list as a binary search tree, (probably not worth it).
* Add a "default option" flag that is run if a user just enters ENTER to a
  menu prompt, (probably not a good idea).
* Keep track of menus visited and allow a "previous" menu option setting so
  the menu designer does not have to make different menus if they have a
  "back" option and the menu is accessable from more than one other menu,
  (probably not a good idea).