__init__.py updated.

And finally __init__.py is being updated to follow the new API from what could
be called backend or library, you choose.

This file includes two calls for ping and version methods, so you can test
the project more easily.
Hello documentation!

The first taste of documentation. Nothing heavy, just Python Sphinx
configuration file and some indexes.

To build, change your current directory to *doc/* and run *make html*.

I also renamed __init__.py to ctrlpi.py. Remember me to add a proper __init__
file later.

This README.md is empty and I'm too lazy to write something now. I'm hungry and
is enough for now.