Release version 2.1.1
This minor release builds on version 2.1.0 by:
- Streamlining the build system
- Updating the documentation to remove and replace out-of-date descriptions and directions
- Updating functional/regression testing and added new unit-testing framework
- Providing support for GCC/gfortran version >= 10
- Adding new ion loss mechanisms via EMIC scattering and field line curvature scattering
- Updating VTK visualization tools
- Updating plasmasphere model implementations and coulomb collision losses
- Fixing numerous small bugs
- Adding citation data directly to the repository