Updated documentation.

Summary of the steps:

Binary:

* First parse command line options and configuration file

* Then register signal handling for ``SIG_USR1`` (reload configuration) and

  ``SIG_TERM`` (terminate process).

* Switch to a daemon context

* Reload logging configuration

* Instanciate and launch a :class:`ccnode.node.Node` in background

* Enter main loop that consist of waiting for signals and reloading configuration

  if needed.

* Instanciate and launch a :class:`ccnode.node.MainLoop`

Organisation of modules/packages

--------------------------------

.. tree ../../ccnode | grep -v \.pyc | grep -v \\.\\.

.. code-block:: text

    |-- config.py

    |   |-- __init__.py

    |   |-- tags.py

    |-- hypervisor

    |   |-- domains

    |   |   |-- __init__.py

    |   |   |-- vm_tags.py

    |   |-- __init__.py

    |   `-- tags.py

    |   |-- lib.py

    |   |-- tags.py

    |-- __init__.py

    |-- jobs.py

    |-- node.py

    |-- plugins.py

    |-- tags.py

    |-- utils.py

Node

----

Summary of the :class:`ccnode.node.Node` main loop:

* TODO

.. automodule:: ccnode.node

    :members: