We're going to use Vista features soon.  Sorry for those poor people
still on XP (or Windows, anyway).

This patch also adds extern "C" { } wrapper around string_util.h
to allow its usage in C++ code

RTTI adds overhead to the binary, and we don't need that.

We don't use exceptions currently.  Since allowing exceptions means a
lot of overhead, this commit disables the feature.

Allows eliminating more dead code.  Adds two more C++ options that may
reduce the binary size.

main.c has been renamed to Main.cxx.

libvorbisidec and libvorbis export the same symbols, which is a
dangerous thing.  Since libvorbisenc depends on libvorbis, this can
get nasty, so let's disable the Vorbis encoder unless the user
explicitly wants it.

Using libopus and libogg.

Updates the WIN32 version number for the upcoming 0.18 release.

Now that the libfluidsynth API was sanitized, we can enable the plugin
automatically if libfluidsynth is installed.

The libfluidsynth API is now sane, and does not require real-time
decoding.

Implementation incomplete, but sort-of-works.  DumpDatabase works, but
MPD is still hard-coded on the "simple" plugin.

Produce a smaller binary by removing all unused functions.

We'll add some C++11 code soon.

Use standard scripts instead of MPD's custom implementation.

GLib 2.16 was released more than 4 years ago.  Let's remove some cruft
from the glib_compat.h header, and avoid new cruft to it.

This plugin is horrible code, I mean it.  Last year, I tried hard to
fix it, but I figured would take less time to do a full rewrite.
Given that I don't even have any device that supports RAOP, I can't do
that properly.  After 16 months, nobody volunteered for fixing it.
Hereby, I delete it, because having no RAOP plugin is better than
having this mess.  Sorry.

.. when HAVE_WINDOWS was not set.