all bigi tests now pass on pure...
very very very rough.  ugg

still lots more work to go on bignum
tons of fast progress
bignum passes all
Import Bigi's benchmark suite. Sweet!
all but one pass with bigint now...
make benchmarks work for all

workaround bug in dividing negative numbers in bigint..
a divide test, anew
some fixes and speed-upes
make a byteLength call
ready for a v1.0.0 release and then moving on...