allow specifying bucket in topic using a configurable separator, otherwise use username, if not authenticated use default username
allow specifying bucket in topic using a configurable separator, otherwise use username, if not authenticated use default username

marianoguerra/ioriodb,javierdallamore/ioriodb,javierdallamore/ioriodb,marianoguerra/ioriodb,javierdallamore/ioriodb,marianoguerra/ioriodb