flexiblepower/fpai-core — pull request #12 by marcdejonge (2014-08-30 14:26:57+00:00)
Title: Removed the ZeroMeasurable with a unit

The new Measure.zero method does neet a unit. This is because sometimes
the zero point of two units are not the same (e.g. for Kelvin, Celcius and
Fahrenheit). It therefor makes no sense to create a 'zero temperature'.