v1.7.0

Contains the following content:

1. Bugfixes:
   • Resolves issue with waterfall appearing garbled on some systems. (PR #205)
   • Resolves issue with Restore Defaults restoring previous settings on exit. (PR #207)
   • Resolves issue with some sound valid sound devices causing PortAudio errors during startup checks. (PR #192)
2. Enhancements:
   • Removes requirement to restart FreeDV after using Restore Defaults. (PR #207)
   • Hides frequency display on main window unless PSK Reporter reporting is turned on. (PR #207)
   • Scales per-mode squelch settings when in multi-RX mode to reduce unwanted noise. (PR #186)
   • Single-thread mode is now the default when multi-RX is turned on. (PR #175)
   • Makes multi-RX mode the default. (PR #175)
   • Mic In/Speaker Out volume controls added to Filter window. (PR #208)
   • Cleans up UI for filters and makes the dialog non-modal. (PR #208)
   • Adds optional support for PulseAudio on Linux systems. (PR #194)
3. Documentation:
   • Adds section on creating Windows shortcuts to handle multiple configurations. (PR #204)
   • Resolves issue with PDF image placement. (PR #203)
4. Build System:
   • Uses more portable way of referring to Bash in build scripts. (PR #200)
   • User manual now installed along with executable. (PR #187)
   • macOS app bundle generated by CMake instead of manually. (PR #184)
   • Fail as soon as a step in the build script fails. (PR #183)
   • Have Windows uninstaller clean up Registry. (PR #182)
   • Windows installer now installs sample .wav files. (PR #182)