Changes in version 1.1.1 (2020-04-13)                  

  - aligned compare() to tibbles
  - added functions for interest rates curve

                 Changes in version 1.1.0 (2020-03-19)                  

  - three new date reference functions: dref_mtd(), dref_qtd() and
    dref_ytd()
  - added the compare() function that compares two tables

                 Changes in version 1.0.0 (2020-03-06)                  

  - added date reference functions