title: debug message printed on jupyter notebook... How to disable it
body: <p>When I am trying to use quandl to download some data within a function in jupiter notebook:</p>
  
  <p>I got some debug messages like, </p>
  
  <blockquote>
    <p>03-Jan-18 10:43:40 DEBUG     Starting new HTTPS connection (1):
    www.quandl.com 03-Jan-18 10:43:40 DEBUG     <a href="https://www.quandl.com:443" rel="nofollow noreferrer">https://www.quandl.com:443</a>
    "GET
    /api/v3/datasets/SCF/CBOE_VX2_ON/data?order=asc&amp;end_date=2100-11-17&amp;start_date=2017-11-28
    HTTP/1.1" 200 None</p>
  </blockquote>
  
  <p>There are too much of them and i do not want to see them... what shall i do? Thank you.</p>