Bug when entering a decimal value in IE if 'number of decimals' is set to 0

[sdm]

If the Windows language setting "number of decimals" is set to 0, a bug occurs when entering a decimal value in a decimal field.

Eg. 5 becomes 1, 90 becomes 1

This can be reproduced by running the Kauri-testPage in IE after changing the Windows language setting "number of decimals" to 0.

The problem is caused by the method getDecimalSeparator() in core.js:

$.getDecimalSeparator = function() {
    var n = 1.1;
    n = n.toLocaleString().substring(1, 2);
    return n;
};

In this case, n.toLocaleString() doesn't contain a decimal separator, so n becomes "".

[sdm]

In [1961]:

core.js: getDecimalSeparator() now returns a default separator in case no decimal separator was found. This fixes #477