Added better module summaries.

Demos/Device/ClassDriver/AudioInput/AudioInput.txt

LUFA/Doxygen.conf

LUFA/Drivers/Board/Buttons.h

LUFA/Drivers/Board/Dataflash.h

LUFA/Drivers/Board/Joystick.h

LUFA/Drivers/Board/LEDs.h

LUFA/Drivers/Board/Temperature.h

LUFA/Drivers/Peripheral/ADC.h

LUFA/Drivers/Peripheral/SPI.h

LUFA/Drivers/Peripheral/Serial.h

LUFA/Drivers/USB/USB.h

LUFA/ManPages/FutureChanges.txt

LUFA/ManPages/LUFAPoweredProjects.txt

LUFA/ManPages/LibraryApps.txt

LUFA/ManPages/MainPage.txt

LUFA/ManPages/ProgrammingApps.txt