https://bugs.musicpd.org/view.php?id=4525

A complete list which replaces the incomplete list in the mpd.conf
manpage.

MPD does not really take advantage of memory-mapped I/O by generating
data right into the ALSA buffer; using plain snd_pcm_mmap_writei() has
no advantage compared to snd_pcm_writei().  Let's kill this
non-feature.

These are other popular clients. In particular, VLC is available on
mobile devices.
Signed-off-by: Ben Boeckel <mathstuf@gmail.com>

Wildcard matches are directly applied to all filenames in
subdirectories without any attempt at matching relative paths.

This change is based on the following feature request:

  http://bugs.musicpd.org/view.php?id=3729

Not used anymore.

Drop support for misencoded tags.  People should not be using ID3v1
anyway.

It's disabled anyway.

Requiring this prefix makes the client's intention very clear, but it
was too hard to understand why this prefix was needed.  Initially, my
intention was to differentiate from broken clients which prefix relate
URIs with a slash; once MPD allowed that.  In the past few years
however, MPD has disallowed that, and there was no significant
breakage (except for the "add /" special case which some clients
apparently still do).  So I figure it's about time to define that an
URI that begins with a slash points to an arbitrary file on the file
system.