Fail to update options when they are not strings

[MatteoPiovanelli]

jquery-nice-select/js/jquery.nice-select.js

Line 126 in bdbb74f

$dropdown.prev('select').val($option.data('value')).trigger('change');

When the library should update the option for the original selected, it fails to do so if the value is interpreted by js as something other than a string.

For example with the following select.

<select id="id" name="name" class="nice-select" /">
                        <option value="true">Yes</option>
                        <option value="false">No</option>
                    </select>