Container#start should take options.

After a hell of a lot of debugging, I've finally got Bind working via the API. Sending the options as a query string seemed to be totally ignored by the server, so I had to replace the generated method with a hand rolled version.

Anyway, I've not included any tests, so sorry about that. I'll try and get some written now I know what the right behaviour is. In the mean time, is this the best way to work it? Is there any reason to approach it by changing the `Model::ClassMethods#request` method instead?