Changes in version 0.2.8                        

    o   Fixed Rd bug (Thanks to Kurt Hornik for pointing out the changes)

                 Changes in version 0.2.7 (2021-05-07)                  

    o   options_manager gained .list argument

    o   extended support for NULL option values

    o   Added 'rmarkdown' to Suggests, by CRAN request

    o   Switched to 'tinytest' test framework

                 Changes in version 0.2.4 (2015-10-27)                  

    o   support for limiting option values

    o   option names that were not defined when creating the options manager are now ignored with a warning.

                 Changes in version 0.2.2 (2015-06-01)                  

    o   bugfix: graphs device altered after loading package.

                 Changes in version 0.2.1 (2015-04-13)                  

    o   added reset_par(), reset_options()

                        Changes in version 0.1.0                        

    o   initial CRAN release