Refactoring, Again :)

Added some more notes about how this is working on the documentation. I do think
that the overall structure is clearer now, and easiest to understand. After all,
that's how it should always be !

--HG--
rename : pelican/processors.py => pelican/generators.py
rename : pelican/generators.py => pelican/writers.py

pelican/themes/notmyidea/templates/index.html

@@ -1,6 +1,6 @@
 {% extends "base.html" %}
-{% block content %}        
 {% block content_title %}{% endblock %}
+{% block content %}        
 {% if articles %}
 {% for article in articles %}        
     {% if loop.index == 1 %}