When hockey fans visit PNC Arena for the Hurricanes opener Friday, they might notice some changes. Most immediately, fans might see the ice just a little bit better after the arena upgraded to LED lighting from CREE. There were also other upgrades to various parts of the arena and a $100,000 suite renovation in which one of the luxury boxes was transformed in to what is called a "loge" box, in which multiple companies share a luxury suite, instead of buying one all to themselves. (Click on…