Changes in version 0.1.8.9008                      

  - Now retrieve_sumario() provides informative error if a cve is
    provided instead of a date (#17).

  - New functions to access the supplements, suplemento_cve() and
    sumario_suplementos(). These are only accessible for 3 months.

  - New function valid_code() returns a logical value instead of an
    error as check_code().

  - New function last_date_boe() returning the date of the last valid
    publication.

  - Better handling of dates (new fecha_anulacion).

  - retrieve_sumario() keeps all columns even if they are empty.

  - retrieve_document() works for some documents before 2009.

Breaking changes:

  - If a function returns a valid CVE now it has an suffix _cve. This
    affects anuncio, disposicion and specially sumario*.

                        Changes in version 0.1.7                        

  - Change to permissive MIT license.
  - New retrieve_document to retrieve and tidy any document from BOE.
  - Now codes are checked before requesting them to the API.

                        Changes in version 0.1.6                        

  - Added a NEWS.md file to track changes to the package.