demux_lavf: select initial edition only by the program's variant_bitrate
ao_avfoundation: stop requesting media while paused
DOCS/man/input: adjust ao-volume documentation to state reality
ao_coreaudio: fix some incorrect channel mappings
Swift: avoid unnecessary unsafe conversions; fixes crash in debug builds
ta: add refcount wrapper
stream_file: use fstat() instead of lseek() to determine file size
disable file size caching
x11: update --geometry at runtime and react to runtime option changes
cocoa-cb: fix building with Swift 4.2
mruby: add a basic ruby implementation of obsevables
Revert "win32: fix desktop directory"
Update RELEASE_NOTES