
* Allow for sectioning of RC files.  Some programs have multiple sets of
  option definitions and they ought to be using the same RC file.
  Cooperating programs may wish to do the same thing.

* Allow a program to load *ALL* the findable RC files, not just the first.

* There should be a way to specify that an option must be set, and that
  setting it via a preset mechanism is sufficient.  Currently, if it must
  be set (i.e. min count > 0), then it must be set on the command line.
