- DCT are now handled by FFTW/MKL whenever available
- Faster strategy to compute the radial derivatives using FFTs following Trefethen (2001, p. 78)
- Add Jafarivarzaneh (2014) mapping
- Add new diagnostics for phase field: phase field spectra, max(phase), min(phase)
- Add support for gravitationnal core/mantle coupling
- Additional python functions to handle coeff files: wavelet transforms and FFTs