Merge branch 'app-fonts' into 'master'

CMakeLists.txt

README.md

src/Lib/Ass/AssFactory.cc

src/Lib/Ass/Line.cc

src/Lib/Ass/Style.cc

src/Lib/Audio.cc

src/UI/AboutWindow.cc

src/UI/AboutWindow.hh

src/UI/AbstractDocumentView.cc

src/UI/DialogHelp.cc

src/UI/DialogHelp.hh

src/UI/DocumentViews/AssLinesView.cc

src/UI/DocumentViews/AudioVisualizer.cc

src/UI/DocumentViews/TimingScene.hh

src/UI/DocumentViews/TimingView.cc

src/UI/DocumentViews/TimingView.hh

src/UI/MainWindow.cc

src/UI/MainWindow.hh

src/UI/VivyDocumentView.cc

src/UI/VivyFileIconProvider.cc