Remove 256 unit limit, there is no evil minor number encoding to deal with any more.
Remove 256 unit limit, there is no evil minor number encoding to
deal with any more.

Spotted by:	"Darren Freestone" <df@cops.org>

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