Support HTTP basic authentication for elasticsearch

[sighalt]

I just wanted to play around with nefertari and ramses so I started an instance of mongodb and elasticsearch via docker on my dev machine. For the elasticsearch service I followed the instructions at https://www.elastic.co/guide/en/elasticsearch/reference/current/docker.html

After the setup elasticsearch is secured by HTTP basic authentication, for which I couldn't find any way to work with nefertari.

I already tried the following workaraound in my local.ini:

elasticsearch.hosts = http://elastic:MagicWord@localhost:9200

But according to the following code (elasticsearch.py:182), a colon is kind of a reserved character for separating multiple hosts.