documentation and namespace to best_avail_sgp_df
namespace fix
roxygen style documentation
more documentation updates
more documentation
sgp multiples documentation cleanup
hopefully the end of the documentation updates
Merge pull request #8 from chrishaid/master

Changed line that checks for proper growth measurees to make the the nor...
Merge pull request #9 from chrishaid/master

Fixed line in s2s_match that checks for KIPPTieredGrowth to check m.12 r...
haid plot wont fail anymore if there are no tested students in end rit.  what idiot didnt write tests for this function?? oh, right, that was me.