Quandl                  Retrieves Data from the Quandl Dataset endpoint
                        and formats
Quandl.api_key          Query or set Quandl API key
Quandl.auth             Query or set Quandl API token
Quandl.database.bulk_download_to_file
                        Downloads a zip with all data from a Quandl
                        database
Quandl.database.bulk_download_url
                        Returns the bulk download url
Quandl.dataset.get      Retrieves Data from the Quandl Dataset endpoint
Quandl.datatable        Retrieves Data from the Quandl Datatable
                        endpoint
Quandl.search           Search the Quandl database
metaData                Retrieve metadata from a Quandl series or
                        search results
quandl.api              Executes Quandl API calls
