Tossed out the attempt to merge the icarus code from BFGMiner to the code
called "Icarus" in the cgminer 3.1.1 version.  There was too much confusing
intermingling making it harder to follow.   Brought the code over from cgminer
and put it in place instead.   At this point it builds and attempts to hash
but each hash attempt results in an invalid NONCE.  Need to dig in deeper.