some horizon endpoints not available

[bolshoy]

Running quickstart docker in ephemeral mode, the endpoints /trades and /assets do not work:

{
  "type": "https://stellar.org/horizon-errors/not_found",
  "title": "Resource Missing",
  "status": 404,
  "detail": "The resource at the url requested was not found.  This is usually occurs for one of two reasons:  The url requested is not valid, or no data in our database could be found with the parameters provided.",
  "instance": "5f0cf7d598d2/o8w9Hm008D-000001"
}

[bartekn]

stellar/quickstart:latest is still using Horizon 0.11.1. These endpoints are available in Horizon 0.12-testing you can install by running stellar/quickstart:testing.