[cinelerra-gg/f31] (11 commits) ...Fix all interdependency tests, enable pulseaudio

Summary of changes: f9b9dc1... Use python3_pkgversion macro for EL7 builds (*) f1b7fbc... Update to 2019-12 snapshot (*) 5e525bf... Remove dropped patch (*) 5e21f4e... - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass (*) 200aa65... Rebuild for dav1d SONAME bump (*) 35ba455... New upstream release, migrate to new package versioning (*) 6af1c99... Add patch to make all Python code use python3 (*) dfa2edd... Switch to shared lv2 dependencies (*) a2ffb23... Add URL for upstream patch submission (*) 6dd61d1... Actually commit patch file (*) d244ca8... Fix all interdependency tests, enable pulseaudio (*) (*) This commit already existed in another branch; no separate mail sent