Furnace v0.4.2 (beta)

this is the first release with a 32-bit version available for Windows.
I recommend you use the 64-bit version (the one that reads win64) but if for some reason you are unable to use it then pick the 32-bit version.

the AppImage is leaner as well, but if it does not work please fill an issue and it will be fixed immediately.
anyway, the change log:

• bring back audio export, now with 3 flavors: single file, one file per system and one file per channel!
• changes to FM, C64 or Game Boy instruments and wavetables are now reflected in real-time!
• "Algorithm here!" no longer displayed. instead it shows the FM algorithm correctly (kinda)
• fix clicking on chips with a low clock rate (particularly TIA)
• fix a stuck note input bug
• implement 20xx effect for Neo Geo SSG, AY-3-8910 and AY8930
• minor playback fix when using speed effects

thanks to all bug reporters!