CANADA STOCKS - TSX rises 0.82 percent

* The Toronto Stock Exchange's S&P/TSX rose 122.87 points, or 0.82 percent, to 15,150.15 for its third straight day of gains. * Leading the index were Hudbay Minerals Inc, up 22.6 percent after announcing a deal to buy the remaining 86 percent stake in Mason Resources. Turquoise Hill Resources Ltd, up 16.2 percent and Centerra Gold Inc, higher by 10.9 percent were the other top gainers. * Lagging shares were Encana Corp, down 12.2 percent after reaching a deal to buy