Until the decoder plugin has called decoder_initialized(), the player
may not submit seek commands.  This however could occur with a slow
decoder and a CUE file with a virtual song offset.  This patch adds
another check.

This is a MPD 0.16 regression: when playing a 24 bit file, the switch
to 16 bit was made only partially, after mBytesPerPacket and
mBytesPerFrame had already been applied.

That means mBytesPerFrame referred to 24 bit, and mBitsPerChannel
referred to 16 bits.  Of course, that cannot work.

Use "printf" instead.

It is known to crash instantly.

Rename the "version" struct, because it seems to be a reserved name on
Solaris:

 "src/decoder/mad_decoder_plugin.c", line 550: (enum) tag redeclared: version
 cc: acomp failed for src/decoder/mad_decoder_plugin.c

Loop over all frames with a specific id, and import all of them - not
just the first one (index 0).

this is inconsistent with other commands (e.g. find) and seems wrong --
a song with no stickers attached is a perfectly valid state and an empty
list of stickers is also perfectly valid.

One APE tag may contain more than one value, separated by null bytes.

Based on the APE reader.

Generic library for scanning APE tags.  Eliminated one "goto"!

Fixes a regression: for output_plugin.delay(), we added a method to
the timer class which returns the delay in milliseconds.  This fails
to detect negative values, because the unsigned integer is divided by
1000, and then casted to signed.

Conflicts:
	NEWS
	configure.ac

After popular demand, I've switched the order of "artist" and "title"
in the stream title.  There is no standard, and there is no reliable
way to parse those from the stream title.

Call access() and print an extra error message when EACCES is
returned.  Hopefully this will reduce the number of support requests
due to wrong file permissions.

The assertion added in MPD 0.15.14 was too much, it failed when the
MIME type of a stream was NULL.

Conflicts:
	NEWS
	configure.ac
	src/decoder_control.c
	src/decoder_control.h
	src/input/rewind_input_plugin.c
	src/output_control.c
	src/output_thread.c
	src/player_thread.c

When one song is played twice, and the decoder is working on the
second "instance", but the first should be seeked, the check in
player_seek_decoder() may assume that it can reuse the decoder without
exchanging pipes.  The last thing was the mistake: the pipe pointer
was different, which led to an assertion failure.  This patch adds
another check which exchanges the player pipe.

More abstraction for decoder_control.pipe.

Some abstraction for decoder_control.pipe access.

Duplicate the "mime" attribute of the inner input_stream object,
instead of copying the pointer.