Release v0.6.0

[wizardishungry]

1. Build tag v0.6.0
2. Upload packages to https://github.com/bongozone/vcvrack-rtlsdr/releases/v0.6.0
3. Submit to community repo

Linux blocked by: #26

[wizardishungry]

@dizzisound Can you make a Windows zip? I want to get this in front of users.

[dizzisound]

@wizardishungry Hi Jon, I'm attaching the zipfile from the make dist against the tagged v0.6.0 commit. Loaded and tested on Windows 8.1 x64. Adding a screenshot, too.

PulsumQuadratum-SDR-0.6.0-win.zip