Feature Request - Add Business Days

```
Feature to add business days excluding weekends

For Instance

Date.today().next().thursday().add(2).weekdays()

Should return next monday instead of saturday.

Location specific versions would be aware of the weekend days for the locale.

Though much higher in scope, ability to setup a list of holidays from an
xml or json url would be nice.
```

Original issue reported on code.google.com by `vinodh.r...@gmail.com` on 27 Apr 2009 at 2:09