Implement a Quota management API extension

Additionally, this adds the prerequisite plumbing

Fixes bug #1199025

Change-Id: Ie84e77ce891cf17a32930326961d16a377850da0
Add 'Getting Started' Doc

Add a 'Getting Started' page to the Documentation under
doc/source/gettingstarted.rst. Added a sample configuration file
that's referenced in the file under doc/examples.

Bug: 1201490
Change-Id: I3d307568230f61d105908540ae809d583b347e56
Merge "Implement a Quota management API extension"