Release survminer 0.4.4 · kassambara/survminer

Minor changes

ggforest updated to take into account interactions and polynomial or spline terms (@fabian-s, #306, @fabian-s, #388
Removed unnecessary call to anova() as requested (@pbiecek, #391

When a factor variable name is the same as one of its level, ggsurvplot() failed (@KohSoonho, #387). Fixed now.
ggsurvplot() can now create correctly faceted survival curves (@uraniborg, #254, @BingxinS, #363)
A typo fixed in the formula for weightened log-rank test (@MarcinKosinski, #336.
surv_summary() can now handle the output of survfit(cox.model, newdata) when the option conf.type = "none" is specified by users (@HeidiSeibold, #335.
ggadjustedcurves() has now flipped labels for conditional/marginal to mach names from ’Adjusted Survival Curves’ by Terry Therneau, Cynthia Crowson, Elizabeth Atkinson (2015) (@pbiecek, #335.