The Callback function used in Binds now returning final check result.

Use it like this:

Binds: {
	'#form-fieldset-username': function(object, callback) {
		object.message("{! MESSAGE_INVALID_ACCOUNT_CHECKING !}");

		q.run('Username', object.val(), function(data) {
			if (!data.Existed) {
				callback(true) ? object.message("{! MESSAGE_INVALID_ACCOUNT_USERNAME_AVAILABLE !}") : false;
			} else {
				callback(false);
				object.message("{! MESSAGE_INVALID_ACCOUNT_USERNAME_TAKEN !}");
			}
		});

		return 1;
	},