Fix definition of square foot.

gentooboontoo / js-quantities

JavaScript library for quantity calculation and unit conversion

http://gentooboontoo.github.io/js-quantities/

MIT License

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Closed dubejf closed 8 years ago

dubejf commented 9 years ago

sqft was using <feet> instead of <foot>. Conversion returned NaN.

Also add a validation pass to catch future errors - making sure unit definition references only predefined units.