[jdom-interest] getText() returns null or ""

[Alex Chaffee]

> What's the deal with getText() returning null when it has no value?
...
> Thoughts? I'd like to suggest changing to returning the empty String
> when there's no value.

+1

This would also make getTextTrim more consistent.  Right now
getTextTrim returns

 <foo></foo>  -> null
 <foo> </foo> -> ""

(At least it should according to the docs; haven't tested.)