[libopenshot/el7] (5 commits) ...Rebuild for ImageMagick on el7

Summary of changes: c8a2769... Re-enable unit tests, ldconfig only RHEL < 8 (*) cdd23e9... ExcludeArch: ppc64le (*) 87c5196... - Rebuild for ffmpeg-4.3 git (*) 885e34f... New upstream release (*) 4134dea... Rebuild for ImageMagick on el7 (*) (*) This commit already existed in another branch; no separate mail sent