API suggestion: replace request getter with createRequest method

[bryanrsmith]

I think the HttpClient.request getter is an awkward way to create a new request. The getter makes it look like it's mutating the client's state, or something. I think the API would be considerably clearer if it were a method instead.

Current API:

client.request
  .withParams({ foo: 'bar' })
  .get(uri);

Proposed API:

client.createRequest()
  .withParams({ foo: 'bar' })
  .get(uri);

[kristianmandrup]

createRequest obviously looks like a factory method, like you are building a new request instance which is more clear incase you are always creating a new instance and never reusing one. In that case you might as well aloe the params hash to be passed directly as an argument to the factory method.