Added overridable default options

It's really useful to override some option taht are ruled by the current CultureInfo.
I remove the defaults management in the 'init' method and extract a new public variable $.fn.autoNumeric.defaults that the user can easily overrid.
I do this in my Asp.NET MVC project to do a simple job:

    <script type="text/javascript">
        $(document).ready(function () {
            $.extend($.fn.autoNumeric.defaults, {
                aSep: '@CurrentCulture.NumberFormat.NumberGroupSeparator',
                aDec: '@CurrentCulture.NumberFormat.NumberDecimalSeparator'
            });
        });
    </script>

Where "CurrentCulture" is a project static variable that I use everywhere to do a conversion.
Now I ensure the globalization of my application without editing the JS original file.

Thank you for your attention