* Add two override points inside AlamofireRequestBuilder in the Swift 3 template.
These allow the caller to control the request configuration (e.g.
to override the cache policy) and to control the Content-Type that is
given to an uploaded form part.
* Regenerate with ./bin/swift3-petstore-all.sh to match recent changes.
This includes a few minor changes that weren't made in this branch, so this
apparently wasn't run on master after some other recent changes.