Changed System_Type to return SGP_BASELINE if Cohort and Baseline Referenced
Change of color of percentile trajectories in growth achievement plots to magenta
Change of color
Refinement of baseline referenced SGP output in combineSGP and summarizeSGP
Update to 1.1-7.0
Merge pull request #412 from dbetebenner/master

Update to 1.1-7.0 with refinements to baseline SGP merging and summarization