Based upon the established conf paradigm used in Nova,
this patch moves the configuration to a central location.
Making config a lot easier to manage, as well a lot easier
to locate.
Additional changes
* Fixed missing notification section in example config.
* Moved external configs to generator config (e.g. osprofiler)
Change-Id: I8bca356768bd710d28361b50754ddcc249a32428
01eff94b76