Can save FE coefficients, constant, r2 in gregress; bug fixes 

Various greg fixes and cleanup 

gstats transform, gstats range, gstats hdfe; new stats, bug fixes 

greshape, gstats winsor, gstats tab, mata (gtop, glevelsof), new stats 

Various bug fixes and minor features (e.g. nansum, nmissing, sumcheck) 

Critical bug fix in gcollapse; minor typo and bug fixes. 

Various bug and typo fixes; gtools can self-upgrade; better docs. 

strL, gduplicates, gquantiles [weight], gtop [weight], glevelsof, gen() 

skewness, kurtosis, rawsum, rawstat; sd semean fixes 

gquantiles (with by); weights, nunique (gcollapse, gegen); misc fixes