====== mitmproxy ======

  - https://mitmproxy.org/
  - http://docs.mitmproxy.org/en/stable/transparent/osx.html
  - https://crypto.stanford.edu/ssl-mitm/
  - http://liuxiang.logdown.com/posts/192057-use-mitmproxy-to-monitor-http-requests
  - http://greenrobot.me/devpost/how-to-debug-http-and-https-traffic-on-android/
  - http://greenrobot.me/devpost/how-to-debug-android-http-get-started/

  brew install python
  brew install mitmproxy
  mitmproxy -p 8888

  mitmproxy -a IP_ADDR -p PORT —-no-upstream-cert



This doesn't work

  sudo -H pip install --ignore-installed mitmproxy