playlist/extm3u: use nullptr instead of NULL
pcm: use nullptr instead of NULL
system/Resolver: use nullptr instead of NULL
encoder/opus: use nullptr instead of NULL
StateFile: use nullptr instead of NULL
util/DynamicFifoBuffer: fix typo in API documentation
TagId3: fix printf string parameter
util/Error: add "printf" attributes
util/Error: add SetLastError() overload with "DWORD code" parameter
util/Error: add method FormatLastError()
fs/OutputStream: new infrastructure for writing to files
*Save, *State: use the OutputStream API instead of FILE*
Merge branch 'master' of git://git.musicpd.org/master/mpd