start implementing MCI TX
start implementing SD writes
update SD CSD according to spec
fix SD write arraybuffer slice
SD write: remember to swap bytes
get basic shadowed writes with node.js SD backend
fix SD callbacks for both read and write
fix small typo
fix supported MCI IRQs (for TX)
implement MCI write callback
turn MMC debugging back on as I still have no idea what i'm doing
mci cmdr transfer should be bitset
disable debug on console output
completely restructure MCI/SD card interface
disable MMC debugging for speed
turn fatal errors in SD into warnings
add System.map of kernel