Improved League Builder, Exhibition Mode

I spent some time in the off-season playing around with the League Builder and Exhibition Mode and making some improvements:

1) I fixed some issues with putting the same player on multiple teams. If you put the 1918 Red Sox and 1927 Yankees in the same league, each team will now have their own version of Babe Ruth with the correct stats and ratings for that point in his career.

2) Team rosters now include everyone who played for that team in that season. Last year's game only included opening day rosters, meaning that Nomar Garciaparra was on the 2004 Red Sox but missing from the 2004 Cubs. A lot of people use Exhibition Mode to do World Series replays — so it's important to have access to players who joined teams in the middle of the season.

3) The Scouting Report now has lines for 'Actual' and 'Sim' — right next to each other to make it easy to compare.