Commit of new class abstraction APIs for all device demos other than the MIDI demo - not documented yet.

Removed scheduler and memory allocation libraries.

Added new EVENT_USB_StartOfFrame event in the library to indicate the start of each USB frame (when generated).

Removed Tx interrupt from the USBtoSerial demo; now sends characters via polling to ensure more time for the Rx interrupt.

LUFA/Drivers/USB/USB.h

@@ -49,7 +49,6 @@
  *    - LUFA/Drivers/USB/HighLevel/USBInterrupt.c
  *    - LUFA/Drivers/USB/HighLevel/USBTask.c
  *    - LUFA/Drivers/USB/HighLevel/ConfigDescriptor.c
- *    - LUFA/Drivers/USB/Class/HIDParser.c
  *
  *  \section Module Description
  *  Functions, macros, variables, enums and types related to the management of USB communications.
@@ -97,7 +96,6 @@
 		#endif
 		
 		#include "HighLevel/ConfigDescriptor.h"
-		#include "Class/HIDParser.h"
 		
 #endif