title: ArangoDB authentication via HTTP
body: <p>I've seen examples of how to authenticate with a database using arangosh, but I couldn't find anything in the documentation about how to authenticate via the http API. Is this possible? Is it something like this:</p>
  
  <p><a href="http://username:passwd@arangouri.com:8529/_api/document">http://username:passwd@arangouri.com:8529/_api/document</a></p>