rename cmd/eris-db in circleci CI
rename cmd/eris-db in circleci CI

eris-ltd/eris-db,benjaminbollen/burrow,silasdavis/burrow,eris-ltd/eris-db,benjaminbollen/burrow,benjaminbollen/eris-db,benjaminbollen/eris-db,silasdavis/burrow,silasdavis/burrow