message: Fix abi for regproducer, added comma, Fix
diff: "fields": [
  {"name":"producer", "type":"account_name"},
  {"name":"producer_key", "type":"public_key"},
  - {"name":"url", "type":"string"}
  + {"name":"url", "type":"string"},
  {"name":"location", "type":"uint16"}
  ]
  },{
  