Changes in version 0.0.4 (2025-09-22)                  

  - Use methods::is for checking classes
  - Remove force compilation flag CXX_STD = CXX11

                 Changes in version 0.0.3 (2021-10-05)                  

  - Begin to use fledge for NEWS.md
  - DESCRIPTION: get rid of spurious Date field

                        Changes in version 0.0.2                        

  - Provided more details in the DESCRIPTION file.
  - Added relevant references in the description.