This updates the predictive pricing of the horizon dashboard. Work items:
* The "flavor" field has been changed to "flavor_name" in order
to match gnocchi.
* It is now possible to specify the hashmap service to use for predictive
pricing through the "CLOUDKITTY_QUOTATION_SERVICE".
* The hashmap service used for quotation does now default to "instance"
instead of "compute".
Change-Id: Ice42fc1687ade87c2a4690e3e52782ecbf7f0ee3
79d1da08cd