Dover High had waited five decades to experience the sheer joy of this moment. And, when it finally — incredibly, remarkably — happened, the moment was every bit as thrilling as the Senators dreamed it would be. Storming back from an 11-point deficit, No. 2 Dover somehow pulled out a memorable 56-53 victory over No. 4 Salesianum to bring home the program’s long-awaited first state title at the Carpenter Center on March 9.