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

Rename build system module makefiles from "lufa.MODULE.in" to "lufa_MODULE.mk" to prevent makefile from assuming the include is an old style build rule, slowing down the build process.

Prevent the BUILD module from shell-executing multiple processes to determine the avr-size flags to speed up the build, unless the size rule is invoked.

Add warnings and set warnings as errors to the SingleUSBModeTest build test makefile.

Update BUILD build system module with OBJECT_FILES variable, for additional user-specified object files. Update HID build module with a small shim application to reprogram the EEPROM of a target.

Add Build System documentation to the library manual. Update CPPCHECK build system module so that it uses the SRC variable rather than just the project directory.

Add new ATPROGRAM build system module. Add ATPROGRAM and CPPCHECK modules to all application makefiles.

Replace architecture specific makefiles in the BuildTests with the new common build system makefiles.

Remove legacy AS4 project files, now that they can be automatically generated by the new maintenance script.

Alter the XPLAINBridge and AVRISP-MKII clone projects so that the descriptors from the AVRISP-MKII clone project can be directly used in the XPLAINBridge project. Add support for RESET_TOGGLES_LIBUSB_COMPAT option in the XPLAINBridge project.

AppConfigHeaders: Make sure that in applications using an AppConfig.h configuration file, all application headers include the configuration file.

AppConfigHeaders: Move out the last of the demo/app configurations into new AppConfig.h header files.

AppConfigHeaders: Switch class driver Device mode demos to use LUFAConfig.h configuration header files.

AppConfigHeaders: Switch low level Device mode demos to use LUFAConfig.h configuration header files.

AppConfigHeaders: Switch class driver Host mode demos to use LUFAConfig.h configuration header files.

AppConfigHeaders: Switch DualRole and low level Host mode demos to use LUFAConfig.h configuration header files.

Fixed compile error with the unreleased ATMEGA32U6 device.

AppConfigHeaders: Update several additional user projects to use configuration header files, rather than makefile defines. Remove compile time warnings for projects lacking device serial support, remove incomplete StandaloneProgrammer project.

AppConfigHeaders: Update several additional user projects to use configuration header files, rather than makefile defines.

AppConfigHeaders: Update several user projects to use configuration header files, rather than makefile defines.

AppConfigHeaders: Update bootloaders to use configuration header files, rather than makefile defines.

Add branch for the conversion of demos to use standard C header files for configuration, rather than makefile defined macros.

The library bootloaders will now correctly start the user application after a watchdog-based application start, even if the /HWB line is held low externally during the reset phase.