bug(money-mask): wrong number formating when value and decimals are setted asychronously

Hi there.

I'm facing a problem with the money-mask. When the value and decimals are coming from a response from the server the money-mask formats the value wrong.

Codepen: http://codepen.io/marcomafessolli/pen/akEEYR

Looking into the code, it happens here: `clearDelimitersAndLeadingZeros((parseFloat(value)).toFixed(decimals));`, specifically here: `(parseFloat(value)).toFixed(decimals)`. Because of that, a number with 3 decimals, when first setted, goes into the parser formatter with 2 decimals and gets rounded, losing one of the decimals.
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