added a total-word counter, for direct comparability of progress with CNTK
added a total-word counter, for direct comparability of progress with CNTK

emjotde/Marian,emjotde/amunn,marian-nmt/marian-train,amunmt/marian,emjotde/amunmt,amunmt/marian,marian-nmt/marian-train,emjotde/amunn,amunmt/marian,emjotde/amunn,emjotde/amunmt,marian-nmt/marian-train,emjotde/amunn,marian-nmt/marian-train,emjotde/Marian,emjotde/amunmt,marian-nmt/marian-train,emjotde/amunmt