RTOG A Randomized Phase III Trial of Concurrent Accelerated Radiation and Cisplatin Versus Concurrent Accelerated Radiation; Cisplatin and Cetuximab (C225) [Followed by Surgery for Selected Patients] For Stage III and IV Head and Neck Carcinomas<br> Adult CIRB - Late Phase Emphasis Closed to Accrual. Pts Have Completed Intervention Completed