Fixed possible rounding in the VERSION_BCD() macros for some 0.01 step increments (thanks to Oliver Zander).

Update ModuleTest build test to enable new warnings supported in the latest Atmel Toolchain release's included AVR-GCC version.

Alter the AVRISP-MKII clone project code to report a different serial number in libUSB compatibility mode, so that both the Jungo drivers and the libUSB drivers can be installed at the same time (and switched back and forth based on the current compatibility mode).

Use an early-abort in the USB_DeviceTask() function rather than wrapping the entire implementation in a conditional.

Fixed logic hole breaking USB operations on a USB controller with only one supported USB mode and no USB_DEVICE_ONLY or USB_HOST_ONLY configuration token set.

Fix include path of the LUFA SOURCES build module from the master build module when used in a legacy LUFA project makefile.

Added new doxygen_upgrade and doxygen_create targets to the DOXYGEN build system module. Clean up CORE build system module.

Document build system targets. Add a rule to the BUILD module that is run if a source file does not exist to show an error to the user, rather than running the check-source rule before each build (slightly faster/more portable and the generated error is then a true make error).

Clean up BUILD module info output formatting, remove explicit gcc-version target and add ability to generate assembly listings of compiled source files for debug purposes.

Fixed missing Win-32bit compatibility sections in the LUFA INF driver files (thanks to Christan Beharrell).

Update the BUILD build system module to early abort and display an error if needed before trying to create the OBJDIR output object file directory.

Upgrade Doxygen configuration files, custom style CSS and DOXYGEN build module for the latest Doxygen release.

Fixed inverted LED driving code for the Arduino Leonardo board. Fixed inverted LEDs_GetLEDs() function implementation for the Benito, Minimus and Arduino UNO boards.

Fix typo in the LED dispatch header, breaking builds for Leonardo board or boards without a LUFA provided LED driver.

Added support for the Arduino Leonardo board. Swap Olimex 32U4 RX/TX LED masks so that it lines up with the Arduino boards.

Added workaround for broken VBUS detection on AVR8 devices when a bootloader starts the application via a software jump without first turning off the OTG pad (thanks to Simon Inns)