Spell checked non-source documentation pages.

Bootloaders/DFU/BootloaderDFU.txt

Bootloaders/TeensyHID/TeensyHID.txt

Demos/Device/AudioInput/AudioInput.txt

Demos/Device/AudioOutput/AudioOutput.txt

Demos/Device/GenericHID/GenericHID.txt

Demos/Device/Keyboard/Keyboard.txt

Demos/Device/KeyboardMouse/KeyboardMouse.txt

Demos/Device/MIDI/MIDI.txt

Demos/Device/MassStorage/MassStorage.txt

Demos/Device/Mouse/Mouse.txt

Demos/Host/CDCHost/CDCHost.txt

Demos/Host/GenericHIDHost/GenericHIDHost.txt

Demos/Host/KeyboardHost/KeyboardHost.txt

Demos/Host/MouseHost/MouseHost.txt

Demos/Host/StillImageHost/StillImageCommands.c

Demos/Host/StillImageHost/StillImageCommands.h

Demos/Host/StillImageHost/StillImageHost.c

Demos/OTG/TestApp/TestApp.txt

LUFA/ChangeLog.txt

LUFA/CompileTimeTokens.txt