Rename UserActionRequest to RequestWithUsername.
Rename UserActionRequest to RequestWithUsername.

UserActionRequest simply adds username field to the given request using
WrappedRequest. So RequestWithUsername is a better name here.

Play manual uses the same naming convention:
http://www.playframework.com/documentation/2.2.x/ScalaActionsComposition

SollmoStudio/beyond,SollmoStudio/beyond,SollmoStudio/beyond