Max Pacioretty and the Canadiens no longer have a problem with just Zdeno Chara and the Bruins. They now have to worry about Paul Gaustad and the Sabres, too. Gaustad ensured that he shot up the ranks on the long list of perceived Montreal villains on Tuesday night when he got into a verbal bout with the Canadiens bench. According to a number of Canadiens, Gaustad got into it with Pacioretty late in Buffalo’s 3-1 win, and he asked the Montreal forward “Where’s Chara? Where’s Chara?” That, of course, is a reference to the season-ending hit that Chara delivered to…