bug in voting_actions.inc

Issue Summary

function _voting_actions_compare($left, $op, $right, $default = TRUE) {
if (empty($left) || empty($default)) {
return $default;
}

must be replaced with

function _voting_actions_compare($left, $op, $right, $default = FALSE) {
if (!isset($left) || !isset($right)) {
return $default;
}

in case of condition, for example, $node->promote == 1
current code will always return true