Fixed bug in binarylogloss
Fixed bug in binarylogloss

cherryc/dynet,Abasyoni/dynet,dhgarrette/cnn,Peilun-Li/dynet,dhgarrette/cnn,kamigaito/cnn,kamigaito/cnn,yoavg/cnn,Peilun-Li/dynet,mitchellstern/dynet,cherryc/dynet,Abasyoni/dynet,cherryc/dynet,yanweifu/cnn,Peilun-Li/dynet,mitchellstern/dynet,yoavg/cnn,mrzu/cnn,kaishengyao/cnn,dhgarrette/cnn,kaishengyao/cnn,Abasyoni/dynet