Changes in version 0.3.0                        

  - Fix Rd formatting
  - new_list_of() no longer checks class of elements due to performance
    costs.

                        Changes in version 0.2.0                        

  - Added shapevec_repr() and shapevec_reprs() for formatting shape
    vectors.
  - Added without() for removing elements from a vector.
  - Added format_bib() for formatting bibliography entries.

                        Changes in version 0.1.0                        

  - Initial release