[wxsvg/f23] (5 commits) ...Update to 1.5.9

Summary of changes: e618943... Rebuilt for ffmpeg-3.1.1 (*) 65e8455... Try fix rfbz #4137 , with upstream fixes. (*) 188535b... After revert 1.5.8-3 missed add new file. (*) 525c20b... Rebuilt for ffmpeg-3.1.1 (*) f155c00... Update to 1.5.9 (*) (*) This commit already existed in another branch; no separate mail sent