By Bill Graveland As world leaders gather at the G7 summit in Kananaskis, Alta., Lesley Boyer has a message. The Calgary grandmother is angry that U.S. President Donald Trump keeps talking about Canada becoming his country’s 51st state. Sitting in a wheelchair at Calgary City Hall on Sunday, Boyer held up a sign with an expletive aimed at Trump. “I’ve been waving my sign around the cameras and hopefully he’ll see it … go away Trump. We don’t want you here,” she said. Boyer was among several hundred people — including labour, youth, Indigenous, political and environmental activists — protesting before most of the G7 leaders had touched down in the city. Trump arrived late Sunday at the Calgary airport before taking a helicopter to the summit site at Kananaskis…