update to better reflect reality:
update to better reflect reality:

o describe additional argument in driver callbacks
o describe flow-control mechanism for processing crypto requests
o remove old cruft
o remove openbsd-specific cruft
o fixup some references
o yada yada ...

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase