[libopenshot/el7] (5 commits) ...Merge branch 'el7'

Summary of changes: 2e0c6ee... Update to latest upstream release. (*) 63a66c6... Build against correct libopenshot-audio. (*) 1d575ad... Rebuilt for ffmpeg-3.5 git (*) f0a0e1e... require libopenshot-audio 0.1.5 (*) 3818067... Merge branch 'el7' (*) This commit already existed in another branch; no separate mail sent