[xpra-codecs-freeworld/f26] (7 commits) ...Merge branch 'master' into f26

Summary of changes: b96c370... Fix ?_isa macro (*) 63164cc... Disable Werror=deprecated-declarations on fedora > 27 (*) c1867fe... Use --without-strict option (upstream bug #1772) (*) bfa7fd3... Rebuilt (*) 9d88622... Update to 2.2.5 (*) bf26e81... - Rebuilt for new ffmpeg snapshot (*) 9b90a5f... Merge branch 'master' into f26 (*) This commit already existed in another branch; no separate mail sent