[xpra-codecs-freeworld/f27] (8 commits) ...Merge branch 'master' into f27

Summary of changes: 5accc57... Update to 2.2 (*) 66f631c... Update to 2.2.1 (*) d8426fc... Mass rebuild for x264 and x265 (*) 87ba42f... Update to 2.2.2 (*) 8a53532... Rebuilt for ffmpeg-3.5 git (*) d22a51d... Update to 2.2.3 (*) d2a41bd... Patched for ffmpeg-3.5 (*) 1fbbc69... Merge branch 'master' into f27 (*) This commit already existed in another branch; no separate mail sent