OTHER: Fix python 3 compatibility
OTHER: Fix behavior of --with-builtin-plugins

Default builtin plugins would trigger an error if some was
disabled explicitly using --with-plugins or --without-plugins.

It now setup the default builtin plugins once selected plugins have
been setup to filter out disabled plugins.
OTHER: Let the compiler figure out what to inline.

No change in CPU usage on Linux, and skipping inline unbreaks
the build on Mac OS X.
OTHER: Expose medialib total size/duration/playtime via server stats.
OTHER: Refcounting bug in medialib_query_result.c
OTHER: Add a nice breakpoint for log messages

You can now break at xmmsc_log_handle in your favorite debugger. At this
function the message has already been formatted, so that it is immediately
legible.
OTHER: Use log_domain in medialib-runner

Replace stray "xmms2-launcher"