Add user guide

Add content to doc/source/user_guide.rst

Change-Id: Ia1b58a866abef8681a6adda7060562baaaaf4001
Adds developer guide

Add developer guide.
Add CLI client documentation.

Implements: bp magnetodb-documentation
Change-Id: I83e7e61b56e3d17c1412e609aa22d9b3f864c7dd
Merge "Adds developer guide"
Merge "Add user guide"
Fix streaming API

Fix streaming API to work properly with eventlet
Add missing data to streaming API config file

Change-Id: I0d206f757dd3c734d3159486c6b49a04bd1f09dc