This release:
- Added reference for BVP onset detection algorithm (closes 36)
- Updated readme file
- New setup.py style
- Added online filtering class in signals.tools
- Added Pearson correlation and RMSE methods in signals.tools
- Added method to compute Welch's power spectrum in signals.tools
- Don't use detrended derivative in signals.eda.kbk_scr (closes 43)
- Various minor changes