add inmemory option to hal2assemblyhub for lods
always use --trans for halLodInterpolate.py
halve the default scale from 10 to 5 in lodInterpolate.  also try dropping maxblock down to 400
try to fix treatment of unsampled sequences.  do not add them to sequence graph as it invalidates too many invariants.  now we try to find them in a pass at the very end.
disable printStats
merge development