Update to v103r18 release.

byuu says:

Changelog:

  - tomoko: improved handling of changing audio devices on the audio
    settings panel
  - ruby/audio/wasapi: added device enumeration and selection support¹
  - ruby/audio/wasapi: release property store handle from audio device
  - ruby/audio/wasapi: fix exclusive mode buffer filling
  - ruby/video/glx2: ported to new API -- tested and confirmed working
    great²
  - ruby/video/sdl: fixed initialization -- tested and confirmed working
    on FreeBSD now³
  - ruby/video/xv: ported to new API -- tested and mostly working great,
    sans fullscreen mode⁴

Errata:

  - accidentally changed "Driver Settings" label to "Driver" on the
    audio settings tab because I deleted the line and forgot the
    "Settings" part
  - need to use "return initialize();" from setDevice() in the WASAPI
    driver, instead of "return true;", so device selection is currently
    not functioning in this WIP for said driver

¹: for now, this will likely end up selecting the first available
endpoint device, which is probably wrong. I need to come up with a
system to expose good 'default values' when selecting new audio drivers,
or changing audio device settings.

²: glx2 is a fallback driver for system with only OpenGL 2.0 and no
OpenGL 3.2 drivers, such as FreeBSD 10.1 with AMD graphics cards.

³: although I really should track down why InputManager::poll() is
crashing the emulator when Video::ready() returns false ...

⁴: really bizarrely, when entering fullscreen mode, it looks like the
image was a triangle strip, and the bottom right triange is missing, and
the top left triangle skews the entire image into it. I'm suspecting
this is a Radeon driver bug when trying to create a 2560x1600 X-Video
surface. The glitch persists when exiting fullscreen, too.

If anyone can test the X-Video driver on their Linux/BSD system, it'd be
appreciated. If it's just my video card, I'll ignore it. If not,
hopefully someone can find the cause of the issue :|

ruby/video/opengl/opengl.hpp

@@ -1,15 +1,19 @@
 #if defined(DISPLAY_XORG)
   #include <GL/gl.h>
   #include <GL/glx.h>
-  #define glGetProcAddress(name) (*glXGetProcAddress)((const GLubyte*)(name))
+  #ifndef glGetProcAddress
+    #define glGetProcAddress(name) (*glXGetProcAddress)((const GLubyte*)(name))
+  #endif
 #elif defined(DISPLAY_QUARTZ)
   #include <OpenGL/gl3.h>
 #elif defined(DISPLAY_WINDOWS)
   #include <GL/gl.h>
   #include <GL/glext.h>
-  #define glGetProcAddress(name) wglGetProcAddress(name)
+  #ifndef glGetProcAddress
+    #define glGetProcAddress(name) wglGetProcAddress(name)
+  #endif
 #else
-  #error "ruby::OpenGL: unsupported platform"
+  #error "ruby::OpenGL3: unsupported platform"
 #endif
 
 #include "bind.hpp"