Pyboat

- fixed a bunch of additional UI bugs introduced by newer PyQT versions
- New setting 'Data' for specifying default table output format (csv, txt or xslx)

- just added the link to the gitter chat to the Help menu
- removed bulky talk pdf

- fixed UI bugs concerning ridge smoothing/thresholding and SSG noise strength

- Scripting interface for significance tests with empirical backgrounds,
see the new [empirical_backgrounds_demo.py](empirical_backgrounds_demo.py)
- Added new output settings to control number and graphics formats
- Batch processing allows to export the filtered signals
- New normalization for the average signal power

- New Settings widget to store persistent parameter values
- Reworked the API, see the new `scripting_demo.py` in the repo root
- Fixed amplitude envelope plotting issues
- Added a lot more documentation for the API functions
- Fixed one-column txt file parsing error
- capped sinc filter size to 2000 for performance reasons
- No automatic overwrite of analyzer parameters for the synthetic generator
- new taskbar icon :boat:

- Fixed export paths for Windows platforms
- Fixed synthetic signal generator AR(1) alpha setting
- Added batch export of wavelet spectra w/o ridges