Ensure that the Keyboard and Mouse demos adhere to the boot protocol specification in that they send a report before the idle period has elapsed if the report data has changed.

Corrections to Keyboard and Mouse combined demos so that all modes (normal, interrupt, fully interrupt) work correctly.

Corrections to Keyboard demo.

Removed AVRISP_Programmer project due to code quality concerns.

Corrected CDC class bootloader to fix a few bugs, changed address counter to store x2 addresses for convenience.

Fixed incorrect/missing control status stage transfers on demos, bootloaders and applications (thanks to Nate Lawson).