Href methods

[James M Snell <ja...@gmail.com>]

Many of the methods in the Entry and Feed interfaces return URI objects.
 While I think this is good in general, it goes lead to some ugly code
when I want to get the uri as a string.

e.g.,

  String uri = entry.getEditLink().getResolvedHref().toString();

I'd like to introduce some shortcut methods that would simplify this.

  String uri = entry.getEditLinkAsString();

The *LinkAsString variants would we a shortcut for getting the fully
resolved value of the link's href attribute.

Thoughts?

- James