MSNoise 1.5.1
This is a bugfix release.
- MAJOR: revert scipy's next_fast_len in MWCS for nextpow2 (needs more work, but this restores the expected original behaviour of the spectral smoother)
- MAJOR: When used with different filters, the AC whitening occured on the same trace, not its copy, leading to wrong spectra. (see #105)
- allow 'intervals" to be float, not only ints