Consolidate JSON formatting
Summary: In some places {"foo" : "bar"} is used, whilst in other places {"foo": "bar"} is used, This diff attempts to consolidate these differences and adopt a more standard JSON format.
Test Plan:
> print_r(id(new PhutilJSON())->encodeFormatted(array('foo' => 'bar'))); { "foo": "bar" }
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley, #blessed_reviewers
Subscribers: Korvin, epriestley
Differential Revision: https://secure.phabricator.com/D11085