backoff fix
backoff fix for memory and on-disk phrase-tables
use Nadir's backoff code
backoff for default GetTargetPhraseCollectionBatch(), used by binary pt and compact pt
minor typo
delete chart translation option if -inf score. Add FF MaxSpanFreeNonTermSource to use it
moses_chart: remove ChartTrellis* k-best code
Only tuneable
Merge ../mosesdecoder into hieu