Bug fix in writing n-best file
Bug fix in writing n-best file

fhieber/incubator-joshua,fhieber/incubator-joshua,lukeorland/joshua,thammegowda/incubator-joshua,lukeorland/joshua,lukeorland/joshua,lukeorland/joshua,thammegowda/incubator-joshua,lukeorland/joshua,lukeorland/joshua,fhieber/incubator-joshua,lukeorland/joshua,fhieber/incubator-joshua,lukeorland/joshua,thammegowda/incubator-joshua,fhieber/incubator-joshua,thammegowda/incubator-joshua,fhieber/incubator-joshua,lukeorland/joshua,thammegowda/incubator-joshua,fhieber/incubator-joshua,fhieber/incubator-joshua,thammegowda/incubator-joshua,thammegowda/incubator-joshua,thammegowda/incubator-joshua,thammegowda/incubator-joshua,fhieber/incubator-joshua,thammegowda/incubator-joshua