In this changeset, I implemented a Helper class to deal with
Monasca requests.
Change-Id: I14cfab2c45451b8bb2ea5f1f48254b41fa5abae8
Partially-Implements: blueprint monasca-support
In this changeset, I implemented the main logic although this is
mainly a shameful copy/paste of Nova's blueprint
https://blueprints.launchpad.net/nova/+spec/centralize-config-options
Partially Implements: blueprint centralise-config-opts
Change-Id: Ib645ad5da5c706336bb6ac37e85b027d05665c32