By Colette Bennett The fast-food giant wants to shake up its offerings while the weather is hot. While summer vacation is a treasured time for many to visit new places and forge wonderful memories, not everyone is feeling the mood this year. Surging flight costs and canceled flights have made air travel more difficult this year, not to mention record high fuel costs (although, thankfully, those are starting to drop, providing relief for many a stressed-out commuter). Luckily, if you can’t travel to your favorite summer travel destinations, whatever the reason, you can enjoy the foods of summer…