TysonStanley/furniture: Furniture 1.8.2

Version 1.8.1 A minor update to fix an error that occurred when only a single variable was being summarized. Version 1.8.0 When piping with table1(), it no longer returns the data set. This feature caused too many unexpected issues. The class of table1 is now no longer tied to the data.frame, for printing purposes. It is still possible to coerce to a data.frame using as.data.frame(). Using the var_names argument is now deprecated. In its place, it is recommended to name the variable in place (e.g., "General Health" = gen_health will produce the label General Health in the table instead of the variable name of gen_health). Fixed issue of having an underscore in a variable name in output = "latex2". Added new attaching message more like the tidyverse to provide information about function conflicts. Added mutate_rowmeans() and mutate_rowsums() to more easily get the rowmeans/rowsums of a larger list of variables using the syntax that can be used within dplyr::select() (e.g., var1:var30 for selecting var1 through var30 in the data frame)