SAN FRANCISCO, June 8 (Reuters) - * The Toronto Stock Exchange's S&P/TSX rose 9.91 points, or 0.06 percent, to 16,202.69. * The biggest contributor to the TSX gain was Royal Bank of Canada, up 0.49 percent, while financials was the top sector contributor, up 0.2 percent. * Leading the index were Enghouse Systems Ltd, up 8.1 percent, Transcontinental Inc, up 5.3 percent, and Dollarama Inc , higher by 3.5 percent. * Lagging shares were Nuvista Energy Ltd, down 4.6 percent, Birchcliff Energy Ltd, d