persist more env across travis stages
persist more env across travis stages

lrytz/scala,martijnhoekstra/scala,scala/scala,lrytz/scala,lrytz/scala,martijnhoekstra/scala,scala/scala,lrytz/scala,lrytz/scala,martijnhoekstra/scala,martijnhoekstra/scala,lrytz/scala,scala/scala,scala/scala,scala/scala,martijnhoekstra/scala,martijnhoekstra/scala,scala/scala