title: Idiomatic use of a Java comparable object
body: <p>I'm using some java.util.Date (which implements java.lang.Comparable) and would like to be able to use it nicely, e.g. use &lt; and >= instead of "compareTo(other) == 1". Is there a nice way to just easily mix in something like scala.math.Ordered without a lot of boiler plate?</p>