Replaced string-based DerivationState signature with proper hashCode() and equals()
Replaced string-based DerivationState signature with proper hashCode() and equals()

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