So, it transpires that python has a module that can convert dicts to plists (-_-), so changed the json to plist converter to use it

Change-Id: Ib5d1dc69ce4c1e99c03db3f5b27b5c8e791b9393
So, it transpires that python has a module that can convert dicts to plists (-_-), so changed the json to plist converter to use it