make *-keep-upright require line placement

…spec into color-operations

Conflicts:
	test/fixture/bad-color.output.json
	test/fixture/root-properties.output.json

… color ops.

add circle render type

Color operations (spec)

* Migrate now migrates arrays of constants rather than deleting them.
* `console.log` in migrations causes invalid json (writes to file).
* Adds values for a few array types that were causing validation errors + validation for a few array types.