text: Title: Debug log on terminal
  Body: Hi,
  when using Halo with boto3, I have a strange behaviour, all the debug log from boto are displayed 
  ![capture d ecran 2017-10-03 a 15 19 27](https://user-images.githubusercontent.com/10193614/31127135-485d24ec-a84e-11e7-9584-a5a37ea5190d.png)
  MacOS/Python3.6
  halo (0.0.5)
  boto3 (1.4.4)
  
  Thanks