Open Stack

The patch I just submitted[1] modifies the syntax of all.yml to use
dictionaries, which changes how variables are referenced. The key
point being in globals.yml, the overriding of a variable will change
from simply specifying the variable to using the dictionary value:

old:
api_interface: 'eth0'

new:
network:
    api_interface: 'eth0'

Preliminary feedback on IRC sounded positive, so I'll go ahead and
work on finishing the review immediately assuming that we'll go
forward. Please ping me if you hate this change so that I can stop the
work.

[1] https://review.openstack.org/#/c/229535/