Merge pull request #14 from jusa/pa4-dev

Improvements to MainVolume D-Bus API.
Revert "[packaging] Disable music, record, voice, sidetone."

This reverts commit 16ee8904cf4385c96198125bee4ff8f6114bec93.
Revert "[build] Disable music, record, voice, sidetone."

This reverts commit 3239ef7ba568c59fad7d197803649b1c42153d61.
[modules] Update voice,music,record,sidetone for PulseAudio 4.0