 The functioning of this package
is radically different from the original Maxima units package - whereas the
original was a basic list of definitions, this package uses rulesets to allow
the user to chose, on a per dimension basis, what unit final answers should be
rendered in.  It will separate units instead of intermixing them in the display,
allowing the user to readily identify the units associated with a particular
answer.  It will allow a user to simplify an expression to its fundamental Base
Units, a