algo/fifo: remove erroneously committed #endif
io/uart: disable fifo debugging
io/uart: move debug definitions below includes
io/uart: don't clear entire lcd every time on debug output
algo/fifo: fix whitespace
algo/fifo: enable interrupts while waiting
io/uart: include lcd header regardless of debug status
io/uart: remove needless duplication of fifo calls
io/uart: correct uart_init zero timeout documentation
io/uart: reorder tx operations; don't prime the pump
io/uart: add UART_DEBUG_INT_FLAG