Division/multiplication between two dimensionless UnitScalars converts units type to int

[JCorson]

When dividing between two dimensionless UnitScalars, units is converted to an int. Is this the expected behavior?

Example:

>>> foo = UnitScalar(1000, units='mole')
>>> bar = UnitScalar(10, units='mole')
>>> baz =  foo / bar
>>> print baz.units
1
>>> print type(baz.units)
<class 'scimath.units.unit.unit'>

>>> foo_2 = UnitScalar(1000, units='none')
>>> bar_2 = UnitScalar(10, units='none')
>>> baz_2 = foo_2 / bar_2
>>> print baz_2.units
1
>>> print type(baz_2.units)
<type 'int'>