[Biosig-general] biosig 3.9.1 release - contains important security fixes

[Alois S. <alo...@gm...>]

biosig 3.9.1 is released. The new version is available as always from
   https://biosig.sourceforge.net/download.html

It's recommended to update libbiosig and all its applications.

It is mostly a bug fix release. The ABI did not change, so when using 
the dynamic linking, only libbiosig.{so,dll,dylib} need to be replaced. 
In case of static linking, please recompile your application.

The main features are:
- fixing several security issues
   TALOS-2025-{2231..2240} corresponding to
	CVE-2025-53518
	CVE-2025-53853
	CVE-2025-52581
	CVE-2025-54480-CVE-2025-54494
	CVE-2025-53557
	CVE-2025-46411
	CVE-2025-53511
	CVE-2025-52461
	CVE-2025-54462
	CVE-2025-48005
   Thanks to the CISCO-TALOS Team for their detailed reports.

- ISHNE format is now usable

- replace obsolete finite() with isfinite()
- improve build support for MACOSX on ARM
   (Thanks to Clemens Brunner for the patches)

- mex-files of biosig4octave (sumskipnan_mex and covm_mex)
   are now provided in proper directory
   (Thanks to Rafael Laboissière for the bug report)


Best regards,
    Alois