Improve register setting; use 16-bit access format instead.
Improving Canvas setters; return previous value to allow reduction of code.
Fixing baudrate for Lilypad/8MHz.
Improving RTC milli-second handling. Remove u32_t division.
Update RTC test cases; additional measurement of baseline.
Adding support for width of strings for canvas.
Started port to Arduino Mega 2560. Adding board and pin definitions.
Restructuring trace handling. Allow binding of iostream for trace.
Prepare UART for Atmega2560 with four devices. Add to Board definition.
Moving SPI port definition to Board. Updating SPI class.
Moving TWI pin definition to Board for porting to ATmega2560.
Testing and updating TWI device drivers for ATmega2560. Adjusting TWI/RTC.
Porting NRF24L01P driver to Arduino Mega 2560 board.
Updating class overview.
Time to add some more structure to allow scaling.
Removing interrupt trampoline function. Making interrupt function a friend.
Correcting mapping of interrupt pins for porting to ATmega2560.
Correcting NRF24L01P constructor for ATmega2560 (Arduino Mega).
Adding support for UTFT Fonts. Adding 7-segment (32x50) font. New example.
Update README after a lot of changes and port to LilyPad and Mega.