The Washington Capitals have traded goaltender Darcy Kuemper to the Los Angeles Kings in exchange for forward Pierre-Luc Dubois. The trade is one-for-one, and there was no retained salary on either side. PLD was set to have a no-move clause on his contract kick in on July 1, so he did not need to waive Dubois, and the Capitals, are both probably hoping for a fresh start in Washington for the…