[Joda-interest] using "now" in an interval string

[Jeff W. <js...@fa...>]

There's no way to specify the current datetime in the string 
representation of an Interval, is there? For example, if I want two days 
leading up to now:

new Interval("P2D/now");

I have a single command-line argument for specifying a date range, and 
specifying dates relative to current date would be convenient instead of 
back-ticking the date command.

jeff