Release 0.3.0
This release has some major bug fixes, some performance updates for FFT class, and added OSCAR scale-based
regularization.
#118 Refactor and remove unwanted imports in CircleCI
#111 Fix FFT class, move to scipy.fft
to better handle multi-process. Also fix the grid-search
#113 Fix the normalize_frequency_locations code to work well with given KMax
#114 Add oscar regularization based on scale