Rules for JSON formatting #206

I see one major inconsistency in our JSON formatting: are there spaces inside [ and ]. ie.

"state": {
    "4d27c8...b53": [ "foo/bar.xml" ],
    "cf83e1...a3e": [ "empty.txt", "empty2.txt" ]
  }

or

"state": {
    "4d27c8...b53": ["foo/bar.xml"],
    "cf83e1...a3e": ["empty.txt", "empty2.txt"]
  }

I note that the Moab examples have two spaces after the : in the state blocks, which should also be changed to one.