input with [type="number"] has a non numeric value for `length`

[FrDH]

Trying to apply the numericality validation on an input with [type="number"], but getting the error in the console:

myNumberField has a non numeric value for length

Meaning, the value should be converted into a string before trying to do .length on it.

[FrDH]

Could be fixed by adding .toString() to https://github.com/ansman/validate.js/blob/master/validate.js#L792