There won't be any labor strife at The Boston Symphony Orchestra in the next three years, as the BSO announced a new, three-contract with the players. This deal, which runs through August, 2014, offers a small increase in the minimum weekly scale for players from $2,539 in 2011-12 to $2,694 in 2013-14. It offers increased for players in pension and per day rates, but does include increases in player contributions for health care. The previous, two-year deal was set to expire Sunday. It allowed for no raises.