Update results for stages 1, 2, 3

results/boston/stage1/losses.png

results/boston/stage2/losses.png

results/boston/stage3/losses.png

results/boston/stage4/losses.png

results/boston/stage4_fix/losses.png

results/breast_cancer/stage1/losses.png

results/breast_cancer/stage2/losses.png

results/breast_cancer/stage3/losses.png

results/breast_cancer/stage4/losses.png

results/breast_cancer/stage4_fix/losses.png

results/california_housing/stage1/losses.png

results/california_housing/stage2/losses.png

results/california_housing/stage3/losses.png

results/california_housing/stage3/stage3_losses_all.png

results/california_housing/stage3/stage3_losses_test.png

results/california_housing/stage4/losses.png

results/california_housing/stage4/losses_2.png

results/california_housing/stage4_backup/losses_2.png

results/california_housing/stage4_fix/losses.png

results/diabetes/stage1/losses.png