Issue with docomentation

Seams to be an issue, for the time being commented the line in ./doc/annotater.rst

If line is present, there is such warning:

<>/bob.ip.annotator/bob/ip/annotator/__init__.py:docstring of bob.ip.annotator.get_config:0: 
WARNING: duplicate object description of bob.ip.annotator.get_config, 
other instance in <>/bob.ip.annotator/doc/annotator.rst,
use :noindex: for one of them

Unfortunately I don't have any idea how to solve this.