added ability to specify tuning and testing grammars separately
added ability to specify tuning and testing grammars separately

no longer copies them to the working directory

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