Add host mode USB Class driver stubs, add beginnings of a CDC host class driver.

Split out common defines/types from class drivers into a seperate common class driver directory.

Make central USB Class driver dispatch headers, used for both device and host modes.

Demos/Device/ClassDriver/AudioInput/AudioInput.h

@@ -48,7 +48,7 @@
 		#include <LUFA/Drivers/Board/Joystick.h>
 		#include <LUFA/Drivers/Peripheral/ADC.h>
 		#include <LUFA/Drivers/USB/USB.h>
-		#include <LUFA/Drivers/USB/Class/Device/Audio.h>
+		#include <LUFA/Drivers/USB/Class/Audio.h>
 
 	/* Macros: */
 		/** ADC channel number for the microphone input. */

Demos/Device/ClassDriver/AudioInput/Descriptors.h

@@ -38,7 +38,7 @@
 
 	/* Includes: */
 		#include <LUFA/Drivers/USB/USB.h>
-		#include <LUFA/Drivers/USB/Class/Device/Audio.h>
+		#include <LUFA/Drivers/USB/Class/Audio.h>
 
 		#include <avr/pgmspace.h>
 

Demos/Device/ClassDriver/AudioInput/makefile

@@ -136,6 +136,7 @@ SRC = $(TARGET).c                                                 \
 	  $(LUFA_PATH)/LUFA/Drivers/USB/HighLevel/USBTask.c           \
 	  $(LUFA_PATH)/LUFA/Drivers/USB/HighLevel/ConfigDescriptor.c  \
 	  $(LUFA_PATH)/LUFA/Drivers/USB/Class/Device/Audio.c          \
+	  $(LUFA_PATH)/LUFA/Drivers/USB/Class/Host/Audio.c            \
 
 
 # List C++ source files here. (C dependencies are automatically generated.)