Transition from the magrittr pipe to the base R pipe.
Added use_nnet(), use_rpart(), use_bag_tree_rpart(), use_mgcv(), use_dbarts(), use_mixOmics(), use_xrf().
Fix recipe() call when clipboard = TRUE
Clipboard access is enabled in all use_*() functions using the clipboard = TRUE argument (#12).
Use new all_nominal_predictors() selector (#17).
Updated version requirements for dependencies.
Added use_cubist().
Fixed bug in handling of variables for step_string2factor()
NEWS.md file to track changes to the package.