Also some dead links were repaired or removed. Some http links
were left as is where attempting https did not work, or where it
is a historical record.
Use the interleaved method of Kadatch and Jenkins in order to make
use of pipelined instructions through multiple ALUs in a single
core. This also speeds up and simplifies the combination of CRCs,
and updates the functions to pre-calculate and use an operator for
CRC combination.
