Not everybody has access to the latest and greatest compilers.

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renamce cstrtok to buffer2array. please don't rename functions; especially to names that look extremely std-lib-ish.  also, don't use isspace, apparently it's local dependent and potentially consideres ' ' or '\t' not to be a space, or considers other characters to be a space.

git-svn-id: https://svn.musicpd.org/mpd/trunk@4574 09075e82-0dd4-0310-85a5-a0d7c8717e4f

-use tree for tagTracker
-eliminate the master process

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Also added a unit test to check for errors/bugs to make sure we
don't have regressions.

Bug found by Qball.

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Our id3 tag buffer should be an array of bytes, not an array of pointers to bytes.  Now I know where those warnings came from...

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Any escaped instances of \ must already be inside an already
quoted string, though.

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(and fdprintf was never meant to be reentrant, either)

A huge thanks to welshbyte for reporting the bug and being very
helpful in helping me fix it.

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merged back into trunk

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tree optimization: reduce the number of compares required for insertion and deletion by storing the position in the parent node of each child

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This was originally introduced in r3718, but reverted r3859 since the
original r3718 commit was incorrect (and I was too excited about
the speedup and also lacking in UTF-8 files to notice :x)

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Oops, I broke pause/resuming from a statefile r4514
Everything should be fixed out.

Also we now avoid opening the audio device until we have a
playable audio_format set.  This is a long-standing bug that got
exposed more blatantly with the single array.

Thanks to MattD in #mpd for reporting my breakage.

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Just malloc all of the audioOutput array in one shot
to avoid fragmentation and to improve cache locality
when iterating through the array.

We also know name and type members of the AudioOutput
struct won't change in the config, so there's no
need to strdup them.

newAudioOutput => initAudioOutput

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It just made things more confusing.  We'll just store
the states in playerData_pd->audioDevicesStates and be
done with it (it's a unsigned byte now).

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Some people have more than 8 devices (the old limit).  It's
pretty easy to support as many as our hardware and OS allows
so we might as well.

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* Moved all logging-related stuff into log.c
(and not myfprintf.c)

* ISO C90-compliant strftime usage:
%e and %R replaced with %d and %H:%M respectively

* Got rid of variadic macros since some old-school compilers
don't like them

* compiling with -DNDEBUG disables the DEBUG() macro

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No point in doing all that extra work for one variable...

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playerData.c:
proper error checking

directory.c:
properly check myFgets() for errors
(it returns NULL on error)

inputPlugins/mp3_plugin.c
get rid of commas at the end of enums

interface.c:
we weren't using long long, so strtoll isn't needed
get rid of void-pointer arithmetic

sllist.c:
get rid of void-pointer arithmetic

compress.c:
get rid of C++ comments, some compilers don't accept them

Note that I personally like void pointer arithmetic, but some
ancient compilers don't support them :(

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bcopy is old-school, yo

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next is to clean up the code and make obvious optimizations

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