In the hope it helps someone, I got it working changing JS a bit:
$('.btn-group[data-toggle=buttons]').each(function (i, e) {
var default_class = $(e).data('toggle-default-class') || 'btn-default';
$(e).find('label')
.click(function (event) {
$(e).find('label')
.each(function (i, e) {
if (!(e == event.target)) {
$(e).removeClass($(e).data('toggle-class'))
.addClass(default_class);
$(e).find('input')
.removeAttr('checked');
} else {
$(e).removeClass(default_class)
.addClass($(e).data('toggle-class'));
$(e).find('input')
.attr('checked', 1);
}
});
});
});
Updated fiddle: http://jsfiddle.net/Hq78X/2/
Thank y'all anyway. :)