Replace cast-as-char* byte access of multibyte variables with proper shifts and masks to preserve endianness across different architectures.

Slight cleanups to the architecture specific makefile templates to make the common configuration sections as identical as possible.

Update architecture specific makefile templates so that they are as close to one-another as possible.

Perform endianness correction in the HID report parser for big-endian platforms.

Remove redundant type information for bitfield elements, other than the signed/unsignedness of the element.

Change type of USB_SelectedPipe and USB_SelectedEndpoint for the AVR32 UC3 architecture to uint32_t to reduce the compiled code size.

Replace all calls and references to _delay_ms() in the code with the architecture-agnostic Delay_MS() function.

Improve code generation for the Delay_MS() function on the AVR8 architecture when called with a constant input.

Remove use of avr-libc specific ATOMIC_BLOCK, replace with a new per-architecture set of inline functions to retrieve and manipulate the global interrupt enable bit for each architecture.

Add in documentation for the USB controller common interrupt routine which must be linked to the interrupt controller in the user application on the AVR32 UC3 architecture.

Renamed all low level Endpoint_Read_*, Endpoint_Write_* and Endpoint_Discard_* functions to use the number of bits instead of a symbolic size (Byte, Word, DWord) so that the function names are applicable and correct across all architectures.

Renamed all low level Pipe_Read_*, Pipe_Write_* and Pipe_Discard_* functions to use the number of bits instead of a symbolic size (Byte, Word, DWord) so that the function names are applicable and correct across all architectures.

Conditionally add available address spaces to the address space enum, for multiple address space architectures.

Update Doxygen configuration file for the latest Doxygen release.

Minor documentation updates.

Add in new architecture attribute defines to selectively remove the EEPROM and FLASH memory space functions on architectures which do not have seperate memory address spaces.

Oops - Bootloader optimizations to GetDescriptor() don't work, as the Configuration Descriptor's header does not contain the full length of the descriptor, breaking full enumeration.

Fixed Remote Wakeup broken on the AVRs due to the mechanism only operating when the SUSPI bit is set (thanks to Holger Steinhaus).

Remove redundant setting of UIDE in the AVR8 and AVR32 USB controller drivers.

Add named macros to the board joystick drivers where a shift is needed to maintain unique joystick direction bits in the returned mask value.

Implemented on-demand PLL clock generation for the U4, U6 and U7 series USB AVRs when automatic PLL mode is specified.

Updated the software USART code in the XPLAIN Bridge application so that the incomming bits are sampled at their mid-point instead of starting point, to give maximum reliability (thanks to Anton).

Add support for the inbuilt unique serial numbers in the UC3A3 and UC3A4 models.

Remove UC3B temp macros related to EEPROM, to ensure that projects requiring this break at compile time rather than at runtime until a solution can be found.