Added functionality to run year-based-regression using Random Forest Regression Trees
added functionality to do log regression because of the positive skew of salaries, and some more images about the performance of our prediciton"
Corrected Mean Absolute Error for log-regression by year and added image of MAE by year for log regression
Added ignore file
Added other file extensions to git ignore
added loading functionality to append the pitchers to the batters, with a 1 for is_pitcher"