Our round-up of Asia-Pacific regional aviation news this month includes interesting stories on Mitsubishi Aircraft, Laos Airlines, Bacolod Airport in the Philippines, and Virgin Australia Mitsubishi Aircraft Countersues Bombardier Over MRJ https://www.reuters.com/article/us-bombardier-lawsuit-mitsubishi/mitsubishi-aircraft-accuses-bombardier-of-trying-to-limit-competition-for-regional-jets-idUSKCN1PN02U Mitsubishi Aircraft has countersued Bombardier alleging that the…