fastplyr 0.5.0

Bug fixes

• Fix for f_summarise returning results in the incorrect order.

Breaking changes

• Previously soft-deprecated arguments have now been removed.

New features

• New function list_tidy as an alternative to list that evaluates
  arguments dynamically with a focus on setting precedence for objects created
  in the list over environment objects.

• new_tbl now evaluates its arguments dynamically. f_expand also
  evaluates its argument dynamically unless the data is grouped and the
  expressions supplied aren't simply column selections.

• New function f_pull as a fast convenience function for extracting
  vectors from columns.

• New functions remove_rows_if_any_na and remove_rows_if_all_na.

• f_arrange gains the .descending argument to efficiently
  return data frames in descending order.