Added check to CDC_Device_BytesReceived() to ensure 0 is returned when device is not enumerated to a host.
Move AVRISP project's V2Protocol_DelayMS() function to be static inline, as it is now very minimal. Added extra project doxygen documentation.
More additions to the PROGRAM_FLASH_ISP and PROGRAM_EEPROM_ISP commands, although neither work correctly yet.
Added dummy RESET_PROTECTIONS handler to prevent the Atmel driver from crashing when the command returns an UNKNOWN_COMMAND error code.