main: bring up-to-date
dev/uart/uart: change RXC int priority from high to medium
dev/uart/uart: revert RXC int priority change
dev/can/spi: implement basic SPI functions for MCP2515 use
dev/can/spi: add _NOP to select and deselect
io/port: fix incorrect PORTD assignments
dev/can/can: implement basic MCP2515 SPI command functionality
std: add mcu/die.h and mcu/reset.h
main: add die() to end so things get flushed properly
dev/uart/uart: fix uart_write always returning false
dev/uart/stdfile: add lcd file
io/stdfile: move from dev/uart/
std: add io/stdfile.h
main: remove dev/uart/stdfile.h inclusion