ShipyardNew event has misnamed property

[barrywimlett]

ShipId should be NewShipID

8.48 ShipyardNew

When written: after a new ship has been purchased

Parameters: ShipType NewShipID

Example: { "timestamp":"2016-07-21T14:36:38Z", "event":"ShipyardNew", "ShipType":"hauler", "NewShipID":4 }