Win32 build fixes.
Merge branch 'master' of https://github.com/audacious-media-player/audacious-plugins
Merge branch 'master' of https://github.com/audacious-media-player/audacious-plugins
Merge branch 'master' of https://github.com/audacious-media-player/audacious-plugins
sid: Fix Win32 build.
cdaudio-ng: Null-terminate list of URI schemes.