Fixed an image anti-aliasing problem. Created some new methods in AudioIODeviceType to create device-specific types. Tidied up some win32 DLL build problems. Added support for drag-and-drop from iTunes on mac.

src/native/linux/juce_linux_Audio.cpp

@@ -1011,7 +1011,7 @@ private:
 };
 
 //==============================================================================
-AudioIODeviceType* juce_createAudioIODeviceType_ALSA()
+AudioIODeviceType* AudioIODeviceType::createAudioIODeviceType_ALSA()
 {
     return new ALSAAudioIODeviceType();
 }