TST:Added mongo service back to travis
TST:Added mongo service back to travis

NSLS-II/metadatastore,hhslepicka/metadatastore,arkilic/metadatastore,ericdill/databroker,hhslepicka/metadatastore,ericdill/databroker,NSLS-II/metadatastore,tacaswell/metadataStore,arkilic/metadatastore,tacaswell/metadataStore