allow overriding DATA_UPLOAD_MAX_NUMBER_FIELD and DATA_UPLOAD_MAX_MEMORY_SIZE via environment variables.
allow overriding DATA_UPLOAD_MAX_NUMBER_FIELD and DATA_UPLOAD_MAX_MEMORY_SIZE
via environment variables.

masneyb/cavedbmanager,masneyb/cavedbmanager,masneyb/cavedbmanager,masneyb/cavedbmanager