Reformat nova.json

Change the formatting of nova.json so that it isn't all on one long
line.  Also alphabetize the reviewers list.

Change-Id: I37dc9b129d2b28ed0df12399e743a4e3c4849740
Add mriedem and dan-prince to nova-core

Change-Id: Iba7131313b46ce6cf409acf414027bc40ac6b964